DateTime.Now DateTime.Now DateTime.Now DateTime.Now Property

정의

이 컴퓨터의 현재 날짜와 시간으로 설정되고 현지 시간으로 표시되는 DateTime 개체를 가져옵니다.Gets a DateTime object that is set to the current date and time on this computer, expressed as the local time.

public:
 static property DateTime Now { DateTime get(); };
public static DateTime Now { get; }
member this.Now : DateTime
Public Shared ReadOnly Property Now As DateTime

속성 값

현재 현지 날짜와 시간이 값인 개체입니다.An object whose value is the current local date and time.

예제

다음 예제에서는 합니다 NowUtcNow 속성을 현재 현지 날짜와 시간 및 현재 범용 검색 (UTC) 날짜 및 시간을 조정 합니다.The following example uses the Now and UtcNow properties to retrieve the current local date and time and the current universal coordinated (UTC) date and time. 그런 다음 다양 한 문화권의 서식 규칙의 값을 사용 하 여 문자열을 함께 표시 하는 해당 Kind 속성입니다.It then uses the formatting conventions of a number of cultures to display the strings, along with the values of the their Kind properties.

using namespace System;
using namespace System::Globalization;

void main()
{
   DateTime localDate = DateTime::Now;
   DateTime utcDate = DateTime::UtcNow;
   array<String^>^ cultureNames = { "en-US", "en-GB", "fr-FR",
                                    "de-DE", "ru-RU" } ;

   for each (String^ cultureName in cultureNames) {
      CultureInfo^ culture = gcnew CultureInfo(cultureName);
      Console::WriteLine("{0}:", culture->NativeName);
      Console::WriteLine("   Local date and time: {0}, {1:G}",
                         localDate.ToString(culture), localDate.Kind);
      Console::WriteLine("   UTC date and time: {0}, {1:G}\n",
                         utcDate.ToString(culture), utcDate.Kind);
   }
}
// The example displays the following output:
//       English (United States):
//          Local date and time: 6/19/2015 10:35:50 AM, Local
//          UTC date and time: 6/19/2015 5:35:50 PM, Utc
//
//       English (United Kingdom):
//          Local date and time: 19/06/2015 10:35:50, Local
//          UTC date and time: 19/06/2015 17:35:50, Utc
//
//       français (France):
//          Local date and time: 19/06/2015 10:35:50, Local
//          UTC date and time: 19/06/2015 17:35:50, Utc
//
//       Deutsch (Deutschland):
//          Local date and time: 19.06.2015 10:35:50, Local
//          UTC date and time: 19.06.2015 17:35:50, Utc
//
//       русский (Россия):
//          Local date and time: 19.06.2015 10:35:50, Local
//          UTC date and time: 19.06.2015 17:35:50, Utc
using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      DateTime localDate = DateTime.Now;
      DateTime utcDate = DateTime.UtcNow;
      String[] cultureNames = { "en-US", "en-GB", "fr-FR",
                                "de-DE", "ru-RU" } ;

      foreach (var cultureName in cultureNames) {
         var culture = new CultureInfo(cultureName);
         Console.WriteLine("{0}:", culture.NativeName);
         Console.WriteLine("   Local date and time: {0}, {1:G}",
                           localDate.ToString(culture), localDate.Kind);
         Console.WriteLine("   UTC date and time: {0}, {1:G}\n",
                           utcDate.ToString(culture), utcDate.Kind);
      }
   }
}
// The example displays the following output:
//       English (United States):
//          Local date and time: 6/19/2015 10:35:50 AM, Local
//          UTC date and time: 6/19/2015 5:35:50 PM, Utc
//
//       English (United Kingdom):
//          Local date and time: 19/06/2015 10:35:50, Local
//          UTC date and time: 19/06/2015 17:35:50, Utc
//
//       français (France):
//          Local date and time: 19/06/2015 10:35:50, Local
//          UTC date and time: 19/06/2015 17:35:50, Utc
//
//       Deutsch (Deutschland):
//          Local date and time: 19.06.2015 10:35:50, Local
//          UTC date and time: 19.06.2015 17:35:50, Utc
//
//       русский (Россия):
//          Local date and time: 19.06.2015 10:35:50, Local
//          UTC date and time: 19.06.2015 17:35:50, Utc
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim localDate = DateTime.Now
      Dim utcDate = DateTime.UtcNow
      Dim cultureNames() As String = { "en-US", "en-GB", "fr-FR",
                                       "de-DE", "ru-RU" }

      For Each cultureName In cultureNames
         Dim culture As New CultureInfo(cultureName)
         Console.WriteLine("{0}:", culture.NativeName)
         Console.WriteLine("   Local date and time: {0}, {1:G}",
                           localDate.ToString(culture), localDate.Kind)
         Console.WriteLine("   UTC date and time: {0}, {1:G}",
                           utcDate.ToString(culture), utcDate.Kind)
         Console.WriteLine()
      Next
   End Sub
End Module
' The example displays the following output:
'       English (United States):
'          Local date and time: 6/19/2015 10:35:50 AM, Local
'          UTC date and time: 6/19/2015 5:35:50 PM, Utc
'
'       English (United Kingdom):
'          Local date and time: 19/06/2015 10:35:50, Local
'          UTC date and time: 19/06/2015 17:35:50, Utc
'
'       français (France):
'          Local date and time: 19/06/2015 10:35:50, Local
'          UTC date and time: 19/06/2015 17:35:50, Utc
'
'       Deutsch (Deutschland):
'          Local date and time: 19.06.2015 10:35:50, Local
'          UTC date and time: 19.06.2015 17:35:50, Utc
'
'       русский (Россия):
'          Local date and time: 19.06.2015 10:35:50, Local
'          UTC date and time: 19.06.2015 17:35:50, Utc

설명

합니다 Now 속성이 반환을 DateTime 로컬 컴퓨터의 시간과 현재 날짜를 나타내는 값입니다.The Now property returns a DateTime value that represents the current date and time on the local computer. 간의 차이를 DateTime 0001 년 1 월 1 일 자정 이후 경과 된 틱 수를 나타내는 값의 문자열 표현이 DateTime 에서 날짜 및 시간 값을 나타내는 값을 특정 문화권별 형식입니다.Note that there is a difference between a DateTime value, which represents the number of ticks that have elapsed since midnight of January 1, 0001, and the string representation of that DateTime value, which expresses a date and time value in a culture-specific-specific format. 날짜 및 시간 값 서식 지정에 대 한 내용은 참조는 ToString 메서드.For information on formatting date and time values, see the ToString method. 다음 예제에서는 여러 가지 문화권별 형식에서에서의 간단한 날짜 및 시간 문자열을 표시합니다.The following example displays the short date and time string in a number of culture-specific formats.

using namespace System;
using namespace System::Globalization;

void main()
{
   DateTime localDate = DateTime::Now;
   array<String^>^ cultureNames = { "en-US", "en-GB", "fr-FR",
                                    "de-DE", "ru-RU" };

   for each (String^ cultureName in cultureNames) {
      CultureInfo^ culture = gcnew CultureInfo(cultureName);
      Console::WriteLine("{0}: {1}", cultureName,
                         localDate.ToString(culture));
   }
}
// The example displays the following output:
//       en-US: 6/19/2015 10:03:06 AM
//       en-GB: 19/06/2015 10:03:06
//       fr-FR: 19/06/2015 10:03:06
//       de-DE: 19.06.2015 10:03:06
//       ru-RU: 19.06.2015 10:03:06
using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      DateTime localDate = DateTime.Now;
      String[] cultureNames = { "en-US", "en-GB", "fr-FR",
                                "de-DE", "ru-RU" };

      foreach (var cultureName in cultureNames) {
         var culture = new CultureInfo(cultureName);
         Console.WriteLine("{0}: {1}", cultureName,
                           localDate.ToString(culture));
      }
   }
}
// The example displays the following output:
//       en-US: 6/19/2015 10:03:06 AM
//       en-GB: 19/06/2015 10:03:06
//       fr-FR: 19/06/2015 10:03:06
//       de-DE: 19.06.2015 10:03:06
//       ru-RU: 19.06.2015 10:03:06
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim localDate = DateTime.Now
      Dim cultureNames() As String = { "en-US", "en-GB", "fr-FR",
                                       "de-DE", "ru-RU" }

      For Each cultureName In cultureNames
         Dim culture As New CultureInfo(cultureName)
         Console.WriteLine("{0}: {1}", cultureName,
                           localDate.ToString(culture))
      Next
   End Sub
End Module
' The example displays the following output:
'    en-US: 6/19/2015 10:03:06 AM
'    en-GB: 19/06/2015 10:03:06
'    fr-FR: 19/06/2015 10:03:06
'    de-DE: 19.06.2015 10:03:06
'    ru-RU: 19.06.2015 10:03:06

이 속성의 해결 방법을 기본 운영 체제에 따라 시스템 타이머에 따라 달라 집니다.The resolution of this property depends on the system timer, which depends on the underlying operating system. 이 0.5 15 밀리초 사이 여야 하는 경향이 있습니다.It tends to be between 0.5 and 15 milliseconds. 결과적으로,에 대 한 호출을 반복 합니다 Now 루프와 같이 짧은 시간 간격 속성에는 동일한 값을 반환할 수도 있습니다.As a result, repeated calls to the Now property in a short time interval, such as in a loop, may return the same value.

Now 속성은 성능을 측정 하는 데 자주 사용 됩니다.The Now property is frequently used to measure performance. 그러나 낮은 해상도 인해 적합 하지 벤치마킹 도구를 사용 합니다.However, because of its low resolution, it is not suitable for use as a benchmarking tool. 더 나은 방법은 사용 하 여 Stopwatch 클래스입니다.A better alternative is to use the Stopwatch class.

반환 값은.NET Framework 버전 2.0부터는 DateTime 해당 Kind 속성이 반환 DateTimeKind.Local합니다.Starting with the .NET Framework version 2.0, the return value is a DateTime whose Kind property returns DateTimeKind.Local.

참고

사용할 수도 있습니다는 DateTimeOffset.Now 현재 현지 날짜와 시간을 검색할 속성입니다.You can also use the DateTimeOffset.Now property to retrieve the current local date and time. 현지 시간 따라서 시간 값을 휴대용 컴퓨터 시간 내에 단일 시점으로 명확 하 게 표현 될 수 있습니다.It allows a local time to be expressed unambiguously as a single point in time, which in turn makes that time value portable across computers.

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