DateTime 建構函式

定義

初始化 DateTime 結構的新執行個體。Initializes a new instance of the DateTime structure.

多載

DateTime(Int64)

DateTime 結構的新執行個體初始化為刻度的指定數目。Initializes a new instance of the DateTime structure to a specified number of ticks.

DateTime(Int64, DateTimeKind)

DateTime 結構的新執行個體初始化為指定的刻度數以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to a specified number of ticks and to Coordinated Universal Time (UTC) or local time.

DateTime(Int32, Int32, Int32)

DateTime 結構的新執行個體初始化為指定的年、月和日。Initializes a new instance of the DateTime structure to the specified year, month, and day.

DateTime(Int32, Int32, Int32, Calendar)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月和日。Initializes a new instance of the DateTime structure to the specified year, month, and day for the specified calendar.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32)

DateTime 結構的新執行個體初始化為指定的年、月、日、時、分和秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, and second.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind)

DateTime 結構的新執行個體初始化為指定年、月、日、時、分、秒以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and Coordinated Universal Time (UTC) or local time.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Calendar)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月、日、時、分和秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, and second for the specified calendar.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32)

DateTime 結構的新執行個體初始化為指定的年、月、日、時、分、秒和毫秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and millisecond.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind)

DateTime 結構的新執行個體初始化為指定年、月、日、時、分、秒、毫秒以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, millisecond, and Coordinated Universal Time (UTC) or local time.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月、日、時、分、秒和毫秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and millisecond for the specified calendar.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月、日、時、分、秒、毫秒以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, millisecond, and Coordinated Universal Time (UTC) or local time for the specified calendar.

DateTime(Int64)

DateTime 結構的新執行個體初始化為刻度的指定數目。Initializes a new instance of the DateTime structure to a specified number of ticks.

public:
 DateTime(long ticks);
public DateTime (long ticks);
new DateTime : int64 -> DateTime
Public Sub New (ticks As Long)

參數

ticks
Int64

以 0001 年 1 月 1 日 00:00:00.000 (西曆) 以來經過的 100 奈秒間隔數表示的日期和時間。A date and time expressed in the number of 100-nanosecond intervals that have elapsed since January 1, 0001 at 00:00:00.000 in the Gregorian calendar.

例外狀況

ticks 小於 MinValue 或大於 MaxValueticks is less than MinValue or greater than MaxValue.

範例

下列範例示範其中一個 DateTime 的函式。The following example demonstrates one of the DateTime constructors.

// This example demonstrates the DateTime(Int64) constructor.
using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Instead of using the implicit, default "G" date and time format string, we 
   // use a custom format string that aligns the results and inserts leading zeroes.
   String^ format = "{0}) The {1} date and time is {2:MM/dd/yyyy hh:mm:ss tt}";
   
   // Create a DateTime for the maximum date and time using ticks.
   DateTime dt1 = DateTime(DateTime::MaxValue.Ticks);
   
   // Create a DateTime for the minimum date and time using ticks.
   DateTime dt2 = DateTime(DateTime::MinValue.Ticks);
   
   // Create a custom DateTime for 7/28/1979 at 10:35:05 PM using a 
   // calendar based on the "en-US" culture, and ticks. 
   Int64 ticks = DateTime(1979,07,28,22,35,5,(gcnew CultureInfo( "en-US",false ))->Calendar).Ticks;
   DateTime dt3 = DateTime(ticks);
   Console::WriteLine( format, 1, "maximum", dt1 );
   Console::WriteLine( format, 2, "minimum", dt2 );
   Console::WriteLine( format, 3, "custom ", dt3 );
   Console::WriteLine( "\nThe custom date and time is created from {0:N0} ticks.", ticks );
}

/*
This example produces the following results:

1) The maximum date and time is 12/31/9999 11:59:59 PM
2) The minimum date and time is 01/01/0001 12:00:00 AM
3) The custom  date and time is 07/28/1979 10:35:05 PM

The custom date and time is created from 624,376,461,050,000,000 ticks.

*/
// This example demonstrates the DateTime(Int64) constructor.
using System;
using System.Globalization;

class Sample 
{
    public static void Main() 
    {
// Instead of using the implicit, default "G" date and time format string, we 
// use a custom format string that aligns the results and inserts leading zeroes.
    string format = "{0}) The {1} date and time is {2:MM/dd/yyyy hh:mm:ss tt}";

// Create a DateTime for the maximum date and time using ticks.
    DateTime dt1 = new DateTime(DateTime.MaxValue.Ticks);

// Create a DateTime for the minimum date and time using ticks.
    DateTime dt2 = new DateTime(DateTime.MinValue.Ticks);

// Create a custom DateTime for 7/28/1979 at 10:35:05 PM using a 
// calendar based on the "en-US" culture, and ticks. 
    long ticks = new DateTime(1979, 07, 28, 22, 35, 5, 
    new CultureInfo("en-US", false).Calendar).Ticks;
    DateTime dt3 = new DateTime(ticks);

    Console.WriteLine(format, 1, "maximum", dt1);
    Console.WriteLine(format, 2, "minimum", dt2);
    Console.WriteLine(format, 3, "custom ", dt3);
    Console.WriteLine("\nThe custom date and time is created from {0:N0} ticks.", ticks);
    }
}
/*
This example produces the following results:

1) The maximum date and time is 12/31/9999 11:59:59 PM
2) The minimum date and time is 01/01/0001 12:00:00 AM
3) The custom  date and time is 07/28/1979 10:35:05 PM

The custom date and time is created from 624,376,461,050,000,000 ticks.

*/
' This example demonstrates the DateTime(Int64) constructor.
Imports System.Globalization

Class Sample
   Public Shared Sub Main()
      ' Instead of using the implicit, default "G" date and time format string, we 
      ' use a custom format string that aligns the results and inserts leading zeroes.
      Dim format As String = "{0}) The {1} date and time is {2:MM/dd/yyyy hh:mm:ss tt}"
      
      ' Create a DateTime for the maximum date and time using ticks.
      Dim dt1 As New DateTime(DateTime.MaxValue.Ticks)
      
      ' Create a DateTime for the minimum date and time using ticks.
      Dim dt2 As New DateTime(DateTime.MinValue.Ticks)
      
      ' Create a custom DateTime for 7/28/1979 at 10:35:05 PM using a 
      ' calendar based on the "en-US" culture, and ticks. 
      Dim ticks As Long = New DateTime(1979, 7, 28, 22, 35, 5, _
                                       New CultureInfo("en-US", False).Calendar).Ticks
      Dim dt3 As New DateTime(ticks)
      
      Console.WriteLine(format, 1, "maximum", dt1)
      Console.WriteLine(format, 2, "minimum", dt2)
      Console.WriteLine(format, 3, "custom ", dt3)
      Console.WriteLine(vbCrLf & "The custom date and time is created from {0:N0} ticks.", ticks)
   End Sub
End Class
'
'This example produces the following results:
'
'1) The maximum date and time is 12/31/9999 11:59:59 PM
'2) The minimum date and time is 01/01/0001 12:00:00 AM
'3) The custom  date and time is 07/28/1979 10:35:05 PM
'
'The custom date and time is created from 624,376,461,050,000,000 ticks.
'

備註

Kind 屬性會初始化為 UnspecifiedThe Kind property is initialized to Unspecified.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

DateTime(Int64, DateTimeKind)

DateTime 結構的新執行個體初始化為指定的刻度數以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to a specified number of ticks and to Coordinated Universal Time (UTC) or local time.

public:
 DateTime(long ticks, DateTimeKind kind);
public DateTime (long ticks, DateTimeKind kind);
new DateTime : int64 * DateTimeKind -> DateTime
Public Sub New (ticks As Long, kind As DateTimeKind)

參數

ticks
Int64

以 0001 年 1 月 1 日 00:00:00.000 (西曆) 以來經過的 100 奈秒間隔數表示的日期和時間。A date and time expressed in the number of 100-nanosecond intervals that have elapsed since January 1, 0001 at 00:00:00.000 in the Gregorian calendar.

kind
DateTimeKind

指出 ticks 是指定本地時間或國際標準時間 (UTC),或是兩者皆非的其中一個列舉值。One of the enumeration values that indicates whether ticks specifies a local time, Coordinated Universal Time (UTC), or neither.

例外狀況

ticks 小於 MinValue 或大於 MaxValueticks is less than MinValue or greater than MaxValue.

kind 不是其中一個 DateTimeKind 值。kind is not one of the DateTimeKind values.

備註

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

DateTime(Int32, Int32, Int32)

DateTime 結構的新執行個體初始化為指定的年、月和日。Initializes a new instance of the DateTime structure to the specified year, month, and day.

public:
 DateTime(int year, int month, int day);
public DateTime (int year, int month, int day);
new DateTime : int * int * int -> DateTime
Public Sub New (year As Integer, month As Integer, day As Integer)

參數

year
Int32

年份 (1 到 9999)。The year (1 through 9999).

month
Int32

月份 (1 到 12)。The month (1 through 12).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

例外狀況

year 小於 1 或大於 9999。year is less than 1 or greater than 9999.

-或--or- month 小於 1 或大於 12。month is less than 1 or greater than 12.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

範例

下列範例會使用 DateTime(Int32, Int32, Int32) 的函式來具現化 DateTime 值。The following example uses the DateTime(Int32, Int32, Int32) constructor to instantiate a DateTime value. 此範例也會說明此多載會建立一個 DateTime 值,其時間元件等於午夜(或0:00)。The example also illustrates that this overload creates a DateTime value whose time component equals midnight (or 0:00).

DateTime date1 = new DateTime(2010, 8, 18);
Console.WriteLine(date1.ToString());
// The example displays the following output:
//      8/18/2010 12:00:00 AM      
Dim date1 As New Date(2010, 8, 18)
Console.WriteLine(date1.ToString())
' The example displays the following output:
'      8/18/2010 12:00:00 AM      

備註

此函式會將 yearmonthday 轉譯為西曆中的年、月和日。This constructor interprets year, month, and day as a year, month, and day in the Gregorian calendar. 若要使用另一個行事曆中的年、月和日來具現化 DateTime 值,請呼叫 DateTime(Int32, Int32, Int32, Calendar) 的函式。To instantiate a DateTime value by using the year, month, and day in another calendar, call the DateTime(Int32, Int32, Int32, Calendar) constructor.

產生之 DateTime 的當日時間為午夜(00:00:00)。The time of day for the resulting DateTime is midnight (00:00:00). Kind 屬性會初始化為 DateTimeKind.UnspecifiedThe Kind property is initialized to DateTimeKind.Unspecified.

DateTime(Int32, Int32, Int32, Calendar)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月和日。Initializes a new instance of the DateTime structure to the specified year, month, and day for the specified calendar.

public:
 DateTime(int year, int month, int day, System::Globalization::Calendar ^ calendar);
public DateTime (int year, int month, int day, System.Globalization.Calendar calendar);
new DateTime : int * int * int * System.Globalization.Calendar -> DateTime

參數

year
Int32

年 (1 到 calendar 中的年數)。The year (1 through the number of years in calendar).

month
Int32

月 (1 到 calendar 中的月數)。The month (1 through the number of months in calendar).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

calendar
Calendar

用以解譯 yearmonthday 的行事曆。The calendar that is used to interpret year, month, and day.

例外狀況

calendarnullcalendar is null.

year 不在 calendar 支援的範圍內。year is not in the range supported by calendar.

-或--or- month 小於 1 或大於 calendar 中的月數。month is less than 1 or greater than the number of months in calendar.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

範例

下列範例會呼叫 DateTime(Int32, Int32, Int32, Calendar) 的函式兩次,以具現化兩個 DateTime 值。The following example calls the DateTime(Int32, Int32, Int32, Calendar) constructor twice to instantiate two DateTime values. 第一個呼叫會使用 PersianCalendar 物件,將 DateTime 值具現化。The first call instantiates a DateTime value by using a PersianCalendar object. 由於波斯曆無法指定為文化特性的預設行事曆,因此在波斯曆中顯示日期需要對其 PersianCalendar.GetMonthPersianCalendar.GetDayOfMonthPersianCalendar.GetYear 方法進行個別呼叫。Because the Persian calendar cannot be designated as the default calendar for a culture, displaying a date in the Persian calendar requires individual calls to its PersianCalendar.GetMonth, PersianCalendar.GetDayOfMonth, and PersianCalendar.GetYear methods. 第二次呼叫此函式時,會使用 HijriCalendar 物件來具現化 DateTime 值。The second call to the constructor instantiates a DateTime value by using a HijriCalendar object. 此範例會將目前的文化特性變更為阿拉伯文(敘利亞),並將目前文化特性的預設行事曆變更為回曆。The example changes the current culture to Arabic (Syria) and changes the current culture's default calendar to the Hijri calendar. 因為回曆是目前文化特性的預設行事曆,所以 Console.WriteLine 方法會使用它來格式化日期。Because Hijri is the current culture's default calendar, the Console.WriteLine method uses it to format the date. 當先前的目前文化特性(在此案例中為英文(美國))還原時,Console.WriteLine 方法會使用目前文化特性的預設西曆來格式化日期。When the previous current culture (which is English (United States) in this case) is restored, the Console.WriteLine method uses the current culture's default Gregorian calendar to format the date.

using System;
using System.Globalization;
using System.Text.RegularExpressions;
using System.Threading;

public class Example
{
   public static void Main()
   {
      Console.WriteLine("Using the Persian Calendar:");
      PersianCalendar persian = new PersianCalendar();
      DateTime date1 = new DateTime(1389, 5, 27, persian);
      Console.WriteLine(date1.ToString());
      Console.WriteLine("{0}/{1}/{2}\n", persian.GetMonth(date1), 
                                       persian.GetDayOfMonth(date1), 
                                       persian.GetYear(date1));
      
      Console.WriteLine("Using the Hijri Calendar:");
      // Get current culture so it can later be restored.
      CultureInfo dftCulture = Thread.CurrentThread.CurrentCulture;
      
      // Define Hijri calendar.
      HijriCalendar hijri = new HijriCalendar();
      // Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("ar-SY");
      CultureInfo current = CultureInfo.CurrentCulture;
      current.DateTimeFormat.Calendar = hijri;
      string dFormat = current.DateTimeFormat.ShortDatePattern;
      // Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy");
      current.DateTimeFormat.ShortDatePattern = dFormat;
      DateTime date2 = new DateTime(1431, 9, 9, hijri);
      Console.WriteLine("{0} culture using the {1} calendar: {2:d}", current, 
                        GetCalendarName(hijri), date2);
      
      // Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture;
      Console.WriteLine("{0} culture using the {1} calendar: {2:d}", 
                        CultureInfo.CurrentCulture, 
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), 
                        date2); 
   }
   
   private static string GetCalendarName(Calendar cal)
   {
      return Regex.Match(cal.ToString(), "\\.(\\w+)Calendar").Groups[1].Value;
   }
}
// The example displays the following output:
//       Using the Persian Calendar:
//       8/18/2010 12:00:00 AM
//       5/27/1389
//       
//       Using the Hijri Calendar:
//       ar-SY culture using the Hijri calendar: 09/09/1431
//       en-US culture using the Gregorian calendar: 8/18/2010
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, persian)
      Console.WriteLine(date1.ToString())
      Console.WriteLine("{0}/{1}/{2}", persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1))
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      Dim dFormat As String = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy")
      current.DateTimeFormat.ShortDatePattern = dFormat
      Dim date2 As New Date(1431, 9, 9, hijri)
      Console.WriteLine("{0} culture using the {1} calendar: {2:d}", current, _
                        GetCalendarName(hijri), date2) 
      
      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      Console.WriteLine("{0} culture using the {1} calendar: {2:d}", _
                        CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
' The example displays the following output:
'       Using the Persian Calendar:
'       8/18/2010 12:00:00 AM
'       5/27/1389
'       
'       Using the Hijri Calendar:
'       ar-SY culture using the Hijri calendar: 09/09/1431
'       en-US culture using the Gregorian calendar: 8/18/2010

備註

產生之 DateTime 的當日時間為午夜(00:00:00)。The time of day for the resulting DateTime is midnight (00:00:00). Kind 屬性會初始化為 UnspecifiedThe Kind property is initialized to Unspecified.

yearmonthday 的允許值取決於 calendarThe allowable values for year, month, and day depend on calendar. 如果無法使用 calendar來表示指定的日期和時間,則會擲回例外狀況(exception)。An exception is thrown if the specified date and time cannot be expressed using calendar.

重要

日本曆法的紀元是以天皇的統治為基礎,因此有變更是正常的。Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. 例如,2019 年 5 月 1 日之後,JapaneseCalendarJapaneseLunisolarCalendar 中將開始使用「令和」。For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. 此變更對使用這些日曆的所有應用程式都有影響。Such a change of era affects all applications that use these calendars. 若要取得詳細資訊及判斷您的應用程式是否受影響,請參閱 Handling a new era in the Japanese calendar in .NET (處理 .NET 中日本日曆的新紀元)。See Handling a new era in the Japanese calendar in .NET for more information and to determine whether your applications are affected. 若要了解如何在 Windows 系統上測試您的應用程式,確保其已準備好面對紀元變更,請參閱 Prepare your application for the Japanese era change (讓應用程式準備好因應日本紀元變更)。See Prepare your application for the Japanese era change for information on testing your applications on Windows systems to ensure their readiness for the era change. 請參閱使用紀年以了解 .NET 中支援使用多種紀年的日曆,以及在處理支援多種紀年的日曆時能採用最佳做法。See Working with eras for features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras.

System.Globalization 命名空間提供數個行事曆,包括 GregorianCalendarJulianCalendarThe System.Globalization namespace provides several calendars including GregorianCalendar and JulianCalendar.

另請參閱

DateTime(Int32, Int32, Int32, Int32, Int32, Int32)

DateTime 結構的新執行個體初始化為指定的年、月、日、時、分和秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, and second.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second);
public DateTime (int year, int month, int day, int hour, int minute, int second);
new DateTime : int * int * int * int * int * int -> DateTime
Public Sub New (year As Integer, month As Integer, day As Integer, hour As Integer, minute As Integer, second As Integer)

參數

year
Int32

年份 (1 到 9999)。The year (1 through 9999).

month
Int32

月份 (1 到 12)。The month (1 through 12).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

例外狀況

year 小於 1 或大於 9999。year is less than 1 or greater than 9999.

-或--or- month 小於 1 或大於 12。month is less than 1 or greater than 12.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23.

-或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

範例

下列範例會使用 DateTime 的函式來具現化 DateTime 值。The following example uses the DateTime constructor to instantiate a DateTime value.

DateTime date1 = new DateTime(2010, 8, 18, 16, 32, 0);
Console.WriteLine(date1.ToString());
// The example displays the following output, in this case for en-us culture:
//      8/18/2010 4:32:00 PM
Dim date1 As New Date(2010, 8, 18, 16, 32, 0)
Console.WriteLine(date1.ToString())
' The example displays the following output:
'      8/18/2010 4:32:00 PM

備註

Kind 屬性會初始化為 UnspecifiedThe Kind property is initialized to Unspecified.

此函式會將yearmonthday 轉譯為西曆中的年、月和日。This constructor interpretsyear, month, and day as a year, month, and day in the Gregorian calendar. 若要使用另一個行事曆中的年、月和日來具現化 DateTime 值,請呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Calendar) 的函式。To instantiate a DateTime value by using the year, month, and day in another calendar, call the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Calendar) constructor.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind)

DateTime 結構的新執行個體初始化為指定年、月、日、時、分、秒以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and Coordinated Universal Time (UTC) or local time.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second, DateTimeKind kind);
public DateTime (int year, int month, int day, int hour, int minute, int second, DateTimeKind kind);
new DateTime : int * int * int * int * int * int * DateTimeKind -> DateTime
Public Sub New (year As Integer, month As Integer, day As Integer, hour As Integer, minute As Integer, second As Integer, kind As DateTimeKind)

參數

year
Int32

年份 (1 到 9999)。The year (1 through 9999).

month
Int32

月份 (1 到 12)。The month (1 through 12).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

kind
DateTimeKind

指出 yearmonthdayhourminutesecond 是指定本地時間或國際標準時間 (UTC),或是兩者皆非的其中一個列舉值。One of the enumeration values that indicates whether year, month, day, hour, minute and second specify a local time, Coordinated Universal Time (UTC), or neither.

例外狀況

year 小於 1 或大於 9999。year is less than 1 or greater than 9999.

-或--or- month 小於 1 或大於 12。month is less than 1 or greater than 12.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23.

-或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

kind 不是其中一個 DateTimeKind 值。kind is not one of the DateTimeKind values.

範例

下列範例會使用 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind) 的函式來具現化 DateTime 值。The following example uses the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind) constructor to instantiate a DateTime value.

DateTime date1 = new DateTime(2010, 8, 18, 16, 32, 0, DateTimeKind.Local);
Console.WriteLine("{0} {1}", date1, date1.Kind);
// The example displays the following output, in this case for en-us culture:
//      8/18/2010 4:32:00 PM Local
Dim date1 As New Date(2010, 8, 18, 16, 32, 0, DateTimeKind.Local)
Console.WriteLine("{0} {1}", date1, date1.Kind)
' The example displays the following output:
'      8/18/2010 4:32:00 PM Local

備註

此函式會將yearmonthday 轉譯為西曆中的年、月和日。This constructor interpretsyear, month, and day as a year, month, and day in the Gregorian calendar. 若要使用另一個行事曆中的年、月和日來具現化 DateTime 值,請呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind) 的函式。To instantiate a DateTime value by using the year, month, and day in another calendar, call the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind) constructor.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Calendar)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月、日、時、分和秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, and second for the specified calendar.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second, System::Globalization::Calendar ^ calendar);
public DateTime (int year, int month, int day, int hour, int minute, int second, System.Globalization.Calendar calendar);
new DateTime : int * int * int * int * int * int * System.Globalization.Calendar -> DateTime

參數

year
Int32

年 (1 到 calendar 中的年數)。The year (1 through the number of years in calendar).

month
Int32

月 (1 到 calendar 中的月數)。The month (1 through the number of months in calendar).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

calendar
Calendar

用以解譯 yearmonthday 的行事曆。The calendar that is used to interpret year, month, and day.

例外狀況

calendarnullcalendar is null.

year 不在 calendar 支援的範圍內。year is not in the range supported by calendar.

-或--or- month 小於 1 或大於 calendar 中的月數。month is less than 1 or greater than the number of months in calendar.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23 -或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

範例

下列範例會呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Calendar) 的函式兩次,以具現化兩個 DateTime 值。The following example calls the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Calendar) constructor twice to instantiate two DateTime values. 第一個呼叫會使用 PersianCalendar 物件,將 DateTime 值具現化。The first call instantiates a DateTime value by using a PersianCalendar object. 由於波斯曆無法指定為文化特性的預設行事曆,因此在波斯曆中顯示日期需要對其 PersianCalendar.GetMonthPersianCalendar.GetDayOfMonthPersianCalendar.GetYear 方法進行個別呼叫。Because the Persian calendar cannot be designated as the default calendar for a culture, displaying a date in the Persian calendar requires individual calls to its PersianCalendar.GetMonth, PersianCalendar.GetDayOfMonth, and PersianCalendar.GetYear methods. 第二次呼叫此函式時,會使用 HijriCalendar 物件來具現化 DateTime 值。The second call to the constructor instantiates a DateTime value by using a HijriCalendar object. 此範例會將目前的文化特性變更為阿拉伯文(敘利亞),並將目前文化特性的預設行事曆變更為回曆。The example changes the current culture to Arabic (Syria) and changes the current culture's default calendar to the Hijri calendar. 因為回曆是目前文化特性的預設行事曆,所以 Console.WriteLine 方法會使用它來格式化日期。Because Hijri is the current culture's default calendar, the Console.WriteLine method uses it to format the date. 當先前的目前文化特性(在此案例中為英文(美國))還原時,Console.WriteLine 方法會使用目前文化特性的預設西曆來格式化日期。When the previous current culture (which is English (United States) in this case) is restored, the Console.WriteLine method uses the current culture's default Gregorian calendar to format the date.

using System;
using System.Globalization;
using System.Text.RegularExpressions;
using System.Threading;

public class Example
{
   public static void Main()
   {
      Console.WriteLine("Using the Persian Calendar:");
      PersianCalendar persian = new PersianCalendar();
      DateTime date1 = new DateTime(1389, 5, 27, 16, 32, 0, persian);
      Console.WriteLine(date1.ToString());
      Console.WriteLine("{0}/{1}/{2} {3}{6}{4:D2}{6}{5:D2}\n", 
                                       persian.GetMonth(date1), 
                                       persian.GetDayOfMonth(date1), 
                                       persian.GetYear(date1), 
                                       persian.GetHour(date1), 
                                       persian.GetMinute(date1), 
                                       persian.GetSecond(date1), 
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator);

      Console.WriteLine("Using the Hijri Calendar:");
      // Get current culture so it can later be restored.
      CultureInfo dftCulture = Thread.CurrentThread.CurrentCulture;
      
      // Define Hijri calendar.
      HijriCalendar hijri = new HijriCalendar();
      // Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("ar-SY");
      CultureInfo current = CultureInfo.CurrentCulture;
      current.DateTimeFormat.Calendar = hijri;
      string dFormat = current.DateTimeFormat.ShortDatePattern;
      // Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy");
      current.DateTimeFormat.ShortDatePattern = dFormat;
      DateTime date2 = new DateTime(1431, 9, 9, 16, 32, 18, hijri);
      Console.WriteLine("{0} culture using the {1} calendar: {2:g}", current, 
                        GetCalendarName(hijri), date2);
      
      // Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture;
      Console.WriteLine("{0} culture using the {1} calendar: {2:g}", 
                        CultureInfo.CurrentCulture, 
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), 
                        date2); 
   }
   
   private static string GetCalendarName(Calendar cal)
   {
      return Regex.Match(cal.ToString(), "\\.(\\w+)Calendar").Groups[1].Value;
   }
}
// The example displays the following output:
//       Using the Persian Calendar:
//       8/18/2010 4:32:00 PM
//       5/27/1389 16:32:00
//       
//       Using the Hijri Calendar:
//       ar-SY culture using the Hijri calendar: 09/09/1431 04:32 م
//       en-US culture using the Gregorian calendar: 8/18/2010 4:32 PM
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, 16, 32, 0, persian)
      Console.WriteLine(date1.ToString())
      Console.WriteLine("{0}/{1}/{2} {3}{6}{4:D2}{6}{5:D2}", persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1), _
                                       persian.GetHour(date1), _
                                       persian.GetMinute(date1), _
                                       persian.GetSecond(date1), _
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator)
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      Dim dFormat As String = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy")
      current.DateTimeFormat.ShortDatePattern = dFormat
      Dim date2 As New Date(1431, 9, 9, 16, 32, 0, hijri)
      Console.WriteLine("{0} culture using the {1} calendar: {2:g}", current, _
                        GetCalendarName(hijri), date2) 

      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      Console.WriteLine("{0} culture using the {1} calendar: {2:g}", _
                        CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
' The example displays the following output:
'       Using the Persian Calendar:
'       8/18/2010 4:32:00 PM
'       5/27/1389 16:32:00
'       
'       Using the Hijri Calendar:
'       ar-SY culture using the Hijri calendar: 09/09/1431 04:32 م
'       en-US culture using the Gregorian calendar: 8/18/2010 4:32 PM

備註

Kind 屬性會初始化為 UnspecifiedThe Kind property is initialized to Unspecified.

yearmonthday 的允許值取決於 calendarThe allowable values for year, month, and day depend on calendar. 如果無法使用 calendar來表示指定的日期和時間,則會擲回例外狀況(exception)。An exception is thrown if the specified date and time cannot be expressed using calendar.

重要

日本曆法的紀元是以天皇的統治為基礎,因此有變更是正常的。Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. 例如,2019 年 5 月 1 日之後,JapaneseCalendarJapaneseLunisolarCalendar 中將開始使用「令和」。For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. 此變更對使用這些日曆的所有應用程式都有影響。Such a change of era affects all applications that use these calendars. 若要取得詳細資訊及判斷您的應用程式是否受影響,請參閱 Handling a new era in the Japanese calendar in .NET (處理 .NET 中日本日曆的新紀元)。See Handling a new era in the Japanese calendar in .NET for more information and to determine whether your applications are affected. 若要了解如何在 Windows 系統上測試您的應用程式,確保其已準備好面對紀元變更,請參閱 Prepare your application for the Japanese era change (讓應用程式準備好因應日本紀元變更)。See Prepare your application for the Japanese era change for information on testing your applications on Windows systems to ensure their readiness for the era change. 請參閱使用紀年以了解 .NET 中支援使用多種紀年的日曆,以及在處理支援多種紀年的日曆時能採用最佳做法。See Working with eras for features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras.

System.Globalization 命名空間提供數個行事曆,包括 GregorianCalendarJulianCalendarThe System.Globalization namespace provides several calendars including GregorianCalendar and JulianCalendar.

另請參閱

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32)

DateTime 結構的新執行個體初始化為指定的年、月、日、時、分、秒和毫秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and millisecond.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond);
public DateTime (int year, int month, int day, int hour, int minute, int second, int millisecond);
new DateTime : int * int * int * int * int * int * int -> DateTime
Public Sub New (year As Integer, month As Integer, day As Integer, hour As Integer, minute As Integer, second As Integer, millisecond As Integer)

參數

year
Int32

年份 (1 到 9999)。The year (1 through 9999).

month
Int32

月份 (1 到 12)。The month (1 through 12).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

millisecond
Int32

毫秒 (0 到 999)。The milliseconds (0 through 999).

例外狀況

year 小於 1 或大於 9999。year is less than 1 or greater than 9999.

-或--or- month 小於 1 或大於 12。month is less than 1 or greater than 12.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23.

-或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

-或--or- millisecond 小於 0 或大於 999。millisecond is less than 0 or greater than 999.

範例

下列範例會使用 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32) 的函式來具現化 DateTime 值。The following example uses the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32) constructor to instantiate a DateTime value.

DateTime date1 = new DateTime(2010, 8, 18, 16, 32, 18, 500);
Console.WriteLine(date1.ToString("M/dd/yyyy h:mm:ss.fff tt"));
// The example displays the following output, in this case for en-us culture:
//      8/18/2010 4:32:18.500 PM
Dim date1 As New Date(2010, 8, 18, 16, 32, 18, 500)
Console.WriteLine(date1.ToString("M/dd/yyyy h:mm:ss.fff tt"))
' The example displays the following output:
'      8/18/2010 4:32:18.500 PM

備註

此函式會將yearmonthday 轉譯為西曆中的年、月和日。This constructor interpretsyear, month, and day as a year, month, and day in the Gregorian calendar. 若要使用另一個行事曆中的年、月和日來具現化 DateTime 值,請呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar) 的函式。To instantiate a DateTime value by using the year, month, and day in another calendar, call the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar) constructor.

Kind 屬性會初始化為 UnspecifiedThe Kind property is initialized to Unspecified.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

另請參閱

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind)

DateTime 結構的新執行個體初始化為指定年、月、日、時、分、秒、毫秒以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, millisecond, and Coordinated Universal Time (UTC) or local time.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, DateTimeKind kind);
public DateTime (int year, int month, int day, int hour, int minute, int second, int millisecond, DateTimeKind kind);
new DateTime : int * int * int * int * int * int * int * DateTimeKind -> DateTime
Public Sub New (year As Integer, month As Integer, day As Integer, hour As Integer, minute As Integer, second As Integer, millisecond As Integer, kind As DateTimeKind)

參數

year
Int32

年份 (1 到 9999)。The year (1 through 9999).

month
Int32

月份 (1 到 12)。The month (1 through 12).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

millisecond
Int32

毫秒 (0 到 999)。The milliseconds (0 through 999).

kind
DateTimeKind

指出 yearmonthdayhourminutesecondmillisecond 是指定本地時間或國際標準時間 (UTC),或是兩者皆非的其中一個列舉值。One of the enumeration values that indicates whether year, month, day, hour, minute, second, and millisecond specify a local time, Coordinated Universal Time (UTC), or neither.

例外狀況

year 小於 1 或大於 9999。year is less than 1 or greater than 9999.

-或--or- month 小於 1 或大於 12。month is less than 1 or greater than 12.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23.

-或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

-或--or- millisecond 小於 0 或大於 999。millisecond is less than 0 or greater than 999.

kind 不是其中一個 DateTimeKind 值。kind is not one of the DateTimeKind values.

範例

下列範例會使用 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind) 的函式來具現化 DateTime 值。The following example uses the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, DateTimeKind) constructor to instantiate a DateTime value.

DateTime date1 = new DateTime(2010, 8, 18, 16, 32, 18, 500, 
                              DateTimeKind.Local);
Console.WriteLine("{0:M/dd/yyyy h:mm:ss.fff tt} {1}", date1, date1.Kind);
// The example displays the following output, in this case for en-us culture:
//      8/18/2010 4:32:18.500 PM Local
Dim date1 As New Date(2010, 8, 18, 16, 32, 18, 500, DateTimeKind.Local)
Console.WriteLine("{0:M/dd/yyyy h:mm:ss.fff tt} {1}", date1, date1.Kind)
' The example displays the following output:
'      8/18/2010 4:32:18.500 PM Local

備註

此函式會將yearmonthday 轉譯為西曆中的年、月和日。This constructor interpretsyear, month, and day as a year, month, and day in the Gregorian calendar. 若要使用另一個行事曆中的年、月和日來具現化 DateTime 值,請呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind) 的函式。To instantiate a DateTime value by using the year, month, and day in another calendar, call the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind) constructor.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月、日、時、分、秒和毫秒。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and millisecond for the specified calendar.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, System::Globalization::Calendar ^ calendar);
public DateTime (int year, int month, int day, int hour, int minute, int second, int millisecond, System.Globalization.Calendar calendar);
new DateTime : int * int * int * int * int * int * int * System.Globalization.Calendar -> DateTime

參數

year
Int32

年 (1 到 calendar 中的年數)。The year (1 through the number of years in calendar).

month
Int32

月 (1 到 calendar 中的月數)。The month (1 through the number of months in calendar).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

millisecond
Int32

毫秒 (0 到 999)。The milliseconds (0 through 999).

calendar
Calendar

用以解譯 yearmonthday 的行事曆。The calendar that is used to interpret year, month, and day.

例外狀況

calendarnullcalendar is null.

year 不在 calendar 支援的範圍內。year is not in the range supported by calendar.

-或--or- month 小於 1 或大於 calendar 中的月數。month is less than 1 or greater than the number of months in calendar.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23.

-或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

-或--or- millisecond 小於 0 或大於 999。millisecond is less than 0 or greater than 999.

範例

下列範例會呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar) 的函式兩次,以具現化兩個 DateTime 值。The following example calls the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar) constructor twice to instantiate two DateTime values. 第一個呼叫會使用 PersianCalendar 物件,將 DateTime 值具現化。The first call instantiates a DateTime value by using a PersianCalendar object. 由於波斯曆無法指定為文化特性的預設行事曆,因此在波斯曆中顯示日期需要對其 PersianCalendar.GetMonthPersianCalendar.GetDayOfMonthPersianCalendar.GetYear 方法進行個別呼叫。Because the Persian calendar cannot be designated as the default calendar for a culture, displaying a date in the Persian calendar requires individual calls to its PersianCalendar.GetMonth, PersianCalendar.GetDayOfMonth, and PersianCalendar.GetYear methods. 第二次呼叫此函式時,會使用 HijriCalendar 物件來具現化 DateTime 值。The second call to the constructor instantiates a DateTime value by using a HijriCalendar object. 此範例會將目前的文化特性變更為阿拉伯文(敘利亞),並將目前文化特性的預設行事曆變更為回曆。The example changes the current culture to Arabic (Syria) and changes the current culture's default calendar to the Hijri calendar. 因為回曆是目前文化特性的預設行事曆,所以 Console.WriteLine 方法會使用它來格式化日期。Because Hijri is the current culture's default calendar, the Console.WriteLine method uses it to format the date. 當先前的目前文化特性(在此案例中為英文(美國))還原時,Console.WriteLine 方法會使用目前文化特性的預設西曆來格式化日期。When the previous current culture (which is English (United States) in this case) is restored, the Console.WriteLine method uses the current culture's default Gregorian calendar to format the date.

using System;
using System.Globalization;
using System.Text.RegularExpressions;
using System.Threading;

public class Example
{
   public static void Main()
   {
      Console.WriteLine("Using the Persian Calendar:");
      PersianCalendar persian = new PersianCalendar();
      DateTime date1 = new DateTime(1389, 5, 27, 16, 32, 18, 500, persian);
      Console.WriteLine(date1.ToString("M/dd/yyyy h:mm:ss.fff tt"));
      Console.WriteLine("{0}/{1}/{2} {3}{7}{4:D2}{7}{5:D2}.{6:G3}\n", 
                                       persian.GetMonth(date1), 
                                       persian.GetDayOfMonth(date1), 
                                       persian.GetYear(date1), 
                                       persian.GetHour(date1), 
                                       persian.GetMinute(date1), 
                                       persian.GetSecond(date1), 
                                       persian.GetMilliseconds(date1), 
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator);

      Console.WriteLine("Using the Hijri Calendar:");
      // Get current culture so it can later be restored.
      CultureInfo dftCulture = Thread.CurrentThread.CurrentCulture;
      
      // Define strings for use in composite formatting.
      string dFormat; 
      string fmtString; 
      // Define Hijri calendar.
      HijriCalendar hijri = new HijriCalendar();
      // Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("ar-SY");
      CultureInfo current = CultureInfo.CurrentCulture;
      current.DateTimeFormat.Calendar = hijri;
      dFormat = current.DateTimeFormat.ShortDatePattern;
      // Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy") + " H:mm:ss.fff";
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "}";
      DateTime date2 = new DateTime(1431, 9, 9, 16, 32, 18, 500, hijri);
      Console.WriteLine(fmtString, current, GetCalendarName(hijri), date2);
      
      // Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture;
      dFormat = DateTimeFormatInfo.CurrentInfo.ShortDatePattern +" H:mm:ss.fff";
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "}";
      Console.WriteLine(fmtString, 
                        CultureInfo.CurrentCulture, 
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), 
                        date2); 
   }
   
   private static string GetCalendarName(Calendar cal)
   {
      return Regex.Match(cal.ToString(), "\\.(\\w+)Calendar").Groups[1].Value;
   }
}
// The example displays the following output:
//       8/18/2010 4:32:18.500 PM
//       5/27/1389 16:32:18.500
//       
//       Using the Hijri Calendar:
//       ar-SY culture using the Hijri calendar: 09/09/1431 16:32:18.500
//       en-US culture using the Gregorian calendar: 8/18/2010 16:32:18.500
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, 16, 32, 18, 500, persian)
      Console.WriteLine(date1.ToString("M/dd/yyyy h:mm:ss.fff tt"))
      Console.WriteLine("{0}/{1}/{2} {3}{7}{4:D2}{7}{5:D2}.{6:G3}", _
                                       persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1), _
                                       persian.GetHour(date1), _
                                       persian.GetMinute(date1), _
                                       persian.GetSecond(date1), _
                                       persian.GetMilliseconds(date1), _
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator)
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define strings for use in composite formatting.
      Dim dFormat As String 
      Dim fmtString As String 
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      dFormat = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy") + " H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "}"
      Dim date2 As New Date(1431, 9, 9, 16, 32, 18, 500, hijri)
      Console.WriteLine(fmtString, current, GetCalendarName(hijri), date2) 

      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      dFormat = DateTimeFormatInfo.CurrentInfo.ShortDatePattern +" H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "}"
      Console.WriteLine(fmtString, CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
' The example displays the following output:
'       Using the Persian Calendar:
'       8/18/2010 4:32:18.500 PM
'       5/27/1389 16:32:18.500
'       
'       Using the Hijri Calendar:
'       ar-SY culture using the Hijri calendar: 09/09/1431 16:32:18.500
'       en-US culture using the Gregorian calendar: 8/18/2010 16:32:18.500

備註

Kind 屬性會初始化為 UnspecifiedThe Kind property is initialized to Unspecified.

yearmonthday 的允許值取決於 calendarThe allowable values for year, month, and day depend on calendar. 如果無法使用 calendar來表示指定的日期和時間,則會擲回例外狀況(exception)。An exception is thrown if the specified date and time cannot be expressed using calendar.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

重要

日本曆法的紀元是以天皇的統治為基礎,因此有變更是正常的。Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. 例如,2019 年 5 月 1 日之後,JapaneseCalendarJapaneseLunisolarCalendar 中將開始使用「令和」。For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. 此變更對使用這些日曆的所有應用程式都有影響。Such a change of era affects all applications that use these calendars. 若要取得詳細資訊及判斷您的應用程式是否受影響,請參閱 Handling a new era in the Japanese calendar in .NET (處理 .NET 中日本日曆的新紀元)。See Handling a new era in the Japanese calendar in .NET for more information and to determine whether your applications are affected. 若要了解如何在 Windows 系統上測試您的應用程式,確保其已準備好面對紀元變更,請參閱 Prepare your application for the Japanese era change (讓應用程式準備好因應日本紀元變更)。See Prepare your application for the Japanese era change for information on testing your applications on Windows systems to ensure their readiness for the era change. 請參閱使用紀年以了解 .NET 中支援使用多種紀年的日曆,以及在處理支援多種紀年的日曆時能採用最佳做法。See Working with eras for features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras.

System.Globalization 命名空間提供數個行事曆,包括 GregorianCalendarJulianCalendarThe System.Globalization namespace provides several calendars including GregorianCalendar and JulianCalendar.

另請參閱

DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind)

DateTime 結構的新執行個體初始化為指定行事曆的指定年、月、日、時、分、秒、毫秒以及國際標準時間 (UTC) 或本地時間。Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, millisecond, and Coordinated Universal Time (UTC) or local time for the specified calendar.

public:
 DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, System::Globalization::Calendar ^ calendar, DateTimeKind kind);
public DateTime (int year, int month, int day, int hour, int minute, int second, int millisecond, System.Globalization.Calendar calendar, DateTimeKind kind);
new DateTime : int * int * int * int * int * int * int * System.Globalization.Calendar * DateTimeKind -> DateTime

參數

year
Int32

年 (1 到 calendar 中的年數)。The year (1 through the number of years in calendar).

month
Int32

月 (1 到 calendar 中的月數)。The month (1 through the number of months in calendar).

day
Int32

日 (1 到 month 中的天數)。The day (1 through the number of days in month).

hour
Int32

小時 (0 到 23)。The hours (0 through 23).

minute
Int32

分鐘 (0 到 59)。The minutes (0 through 59).

second
Int32

秒數 (0 到 59)。The seconds (0 through 59).

millisecond
Int32

毫秒 (0 到 999)。The milliseconds (0 through 999).

calendar
Calendar

用以解譯 yearmonthday 的行事曆。The calendar that is used to interpret year, month, and day.

kind
DateTimeKind

指出 yearmonthdayhourminutesecondmillisecond 是指定本地時間或國際標準時間 (UTC),或是兩者皆非的其中一個列舉值。One of the enumeration values that indicates whether year, month, day, hour, minute, second, and millisecond specify a local time, Coordinated Universal Time (UTC), or neither.

例外狀況

calendarnullcalendar is null.

year 不在 calendar 支援的範圍內。year is not in the range supported by calendar.

-或--or- month 小於 1 或大於 calendar 中的月數。month is less than 1 or greater than the number of months in calendar.

-或--or- day 小於 1 或大於 month 中的天數。day is less than 1 or greater than the number of days in month.

-或--or- hour 小於 0 或大於 23。hour is less than 0 or greater than 23.

-或--or- minute 小於 0 或大於 59。minute is less than 0 or greater than 59.

-或--or- second 小於 0 或大於 59。second is less than 0 or greater than 59.

-或--or- millisecond 小於 0 或大於 999。millisecond is less than 0 or greater than 999.

kind 不是其中一個 DateTimeKind 值。kind is not one of the DateTimeKind values.

範例

下列範例會呼叫 DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind) 的函式兩次,以具現化兩個 DateTime 值。The following example calls the DateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Calendar, DateTimeKind) constructor twice to instantiate two DateTime values. 第一個呼叫會使用 PersianCalendar 物件,將 DateTime 值具現化。The first call instantiates a DateTime value by using a PersianCalendar object. 由於波斯曆無法指定為文化特性的預設行事曆,因此在波斯曆中顯示日期需要對其 PersianCalendar.GetMonthPersianCalendar.GetDayOfMonthPersianCalendar.GetYear 方法進行個別呼叫。Because the Persian calendar cannot be designated as the default calendar for a culture, displaying a date in the Persian calendar requires individual calls to its PersianCalendar.GetMonth, PersianCalendar.GetDayOfMonth, and PersianCalendar.GetYear methods. 第二次呼叫此函式時,會使用 HijriCalendar 物件來具現化 DateTime 值。The second call to the constructor instantiates a DateTime value by using a HijriCalendar object. 此範例會將目前的文化特性變更為阿拉伯文(敘利亞),並將目前文化特性的預設行事曆變更為回曆。The example changes the current culture to Arabic (Syria) and changes the current culture's default calendar to the Hijri calendar. 因為回曆是目前文化特性的預設行事曆,所以 Console.WriteLine 方法會使用它來格式化日期。Because Hijri is the current culture's default calendar, the Console.WriteLine method uses it to format the date. 當先前的目前文化特性(在此案例中為英文(美國))還原時,Console.WriteLine 方法會使用目前文化特性的預設西曆來格式化日期。When the previous current culture (which is English (United States) in this case) is restored, the Console.WriteLine method uses the current culture's default Gregorian calendar to format the date.

using System;
using System.Globalization;
using System.Text.RegularExpressions;
using System.Threading;

public class Example
{
   public static void Main()
   {
      Console.WriteLine("Using the Persian Calendar:");
      PersianCalendar persian = new PersianCalendar();
      DateTime date1 = new DateTime(1389, 5, 27, 16, 32, 18, 500, 
                                    persian, DateTimeKind.Local);
      Console.WriteLine("{0:M/dd/yyyy h:mm:ss.fff tt} {1}", date1, date1.Kind);
      Console.WriteLine("{0}/{1}/{2} {3}{8}{4:D2}{8}{5:D2}.{6:G3} {7}\n", 
                                       persian.GetMonth(date1), 
                                       persian.GetDayOfMonth(date1), 
                                       persian.GetYear(date1), 
                                       persian.GetHour(date1), 
                                       persian.GetMinute(date1), 
                                       persian.GetSecond(date1), 
                                       persian.GetMilliseconds(date1), 
                                       date1.Kind, 
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator);

      Console.WriteLine("Using the Hijri Calendar:");
      // Get current culture so it can later be restored.
      CultureInfo dftCulture = Thread.CurrentThread.CurrentCulture;
      
      // Define strings for use in composite formatting.
      string dFormat; 
      string fmtString; 
      // Define Hijri calendar.
      HijriCalendar hijri = new HijriCalendar();
      // Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("ar-SY");
      CultureInfo current = CultureInfo.CurrentCulture;
      current.DateTimeFormat.Calendar = hijri;
      dFormat = current.DateTimeFormat.ShortDatePattern;
      // Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy") + " H:mm:ss.fff";
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "} {3}";
      DateTime date2 = new DateTime(1431, 9, 9, 16, 32, 18, 500, 
                                    hijri, DateTimeKind.Local);
      Console.WriteLine(fmtString, current, GetCalendarName(hijri), 
                        date2, date2.Kind);
      
      // Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture;
      dFormat = DateTimeFormatInfo.CurrentInfo.ShortDatePattern +" H:mm:ss.fff";
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "} {3}";
      Console.WriteLine(fmtString, 
                        CultureInfo.CurrentCulture, 
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), 
                        date2, date2.Kind); 
   }
   
   private static string GetCalendarName(Calendar cal)
   {
      return Regex.Match(cal.ToString(), "\\.(\\w+)Calendar").Groups[1].Value;
   }
}
// The example displays the following output:
//    Using the Persian Calendar:
//    8/18/2010 4:32:18.500 PM Local
//    5/27/1389 16:32:18.500 Local
//    
//    Using the Hijri Calendar:
//    ar-SY culture using the Hijri calendar: 09/09/1431 16:32:18.500 Local
//    en-US culture using the Gregorian calendar: 8/18/2010 16:32:18.500 Local
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, 16, 32, 18, 500, _
                            persian, DateTimeKind.Local)
      Console.WriteLine("{0:M/dd/yyyy h:mm:ss.fff tt} {1}", date1, date1.Kind)
      Console.WriteLine("{0}/{1}/{2} {3}{8}{4:D2}{8}{5:D2}.{6:G3} {7}", _
                                       persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1), _
                                       persian.GetHour(date1), _
                                       persian.GetMinute(date1), _
                                       persian.GetSecond(date1), _
                                       persian.GetMilliseconds(date1), _
                                       date1.Kind, _
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator)
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define strings for use in composite formatting.
      Dim dFormat As String 
      Dim fmtString As String 
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      dFormat = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy") + " H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "} {3}"
      Dim date2 As New Date(1431, 9, 9, 16, 32, 18, 500, _
                            hijri, DateTimeKind.Local)
      Console.WriteLine(fmtString, current, GetCalendarName(hijri), _
                        date2, date2.Kind) 

      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      dFormat = DateTimeFormatInfo.CurrentInfo.ShortDatePattern +" H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "} {3}"
      Console.WriteLine(fmtString, CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2, date2.Kind) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
' The example displays the following output:
'       Using the Persian Calendar:
'       8/18/2010 4:32:18.500 PM
'       5/27/1389 16:32:18.500
'       
'       Using the Hijri Calendar:
'       ar-SY culture using the Hijri calendar: 09/09/1431 16:32:18.500
'       en-US culture using the Gregorian calendar: 8/18/2010 16:32:18.500

備註

yearmonthday 參數的允許值取決於 calendar 參數。The allowable values for year, month, and day parameters depend on the calendar parameter. 如果無法使用 calendar來表示指定的日期和時間,則會擲回例外狀況(exception)。An exception is thrown if the specified date and time cannot be expressed using calendar.

對於可攜性日期和時間資料的應用程式,或有限程度的時區感知,您可以使用對應的 DateTimeOffset 的函式。For applications in which portability of date and time data or a limited degree of time zone awareness is important, you can use the corresponding DateTimeOffset constructor.

重要

日本曆法的紀元是以天皇的統治為基礎,因此有變更是正常的。Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. 例如,2019 年 5 月 1 日之後,JapaneseCalendarJapaneseLunisolarCalendar 中將開始使用「令和」。For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. 此變更對使用這些日曆的所有應用程式都有影響。Such a change of era affects all applications that use these calendars. 若要取得詳細資訊及判斷您的應用程式是否受影響,請參閱 Handling a new era in the Japanese calendar in .NET (處理 .NET 中日本日曆的新紀元)。See Handling a new era in the Japanese calendar in .NET for more information and to determine whether your applications are affected. 若要了解如何在 Windows 系統上測試您的應用程式,確保其已準備好面對紀元變更,請參閱 Prepare your application for the Japanese era change (讓應用程式準備好因應日本紀元變更)。See Prepare your application for the Japanese era change for information on testing your applications on Windows systems to ensure their readiness for the era change. 請參閱使用紀年以了解 .NET 中支援使用多種紀年的日曆,以及在處理支援多種紀年的日曆時能採用最佳做法。See Working with eras for features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras.

System.Globalization 命名空間提供數個行事曆,包括 GregorianCalendarJulianCalendarThe System.Globalization namespace provides several calendars including GregorianCalendar and JulianCalendar.

適用於