TimeZoneInfo.AdjustmentRule TimeZoneInfo.AdjustmentRule TimeZoneInfo.AdjustmentRule TimeZoneInfo.AdjustmentRule Class

定義

提供關於時區調整的資訊,例如日光節約時間的開始與結束。Provides information about a time zone adjustment, such as the transition to and from daylight saving time.

public: ref class TimeZoneInfo::AdjustmentRule sealed : IEquatable<TimeZoneInfo::AdjustmentRule ^>, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable
[System.Serializable]
public sealed class TimeZoneInfo.AdjustmentRule : IEquatable<TimeZoneInfo.AdjustmentRule>, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
type TimeZoneInfo.AdjustmentRule = class
    interface IEquatable<TimeZoneInfo.AdjustmentRule>
    interface ISerializable
    interface IDeserializationCallback
Public NotInheritable Class TimeZoneInfo.AdjustmentRule
Implements IDeserializationCallback, IEquatable(Of TimeZoneInfo.AdjustmentRule), ISerializable
繼承
TimeZoneInfo.AdjustmentRuleTimeZoneInfo.AdjustmentRuleTimeZoneInfo.AdjustmentRuleTimeZoneInfo.AdjustmentRule
屬性
實作

範例

下列範例會擷取所有定義於本機系統的時區,並顯示其調整規則的完整資訊。The following example retrieves all time zones defined on the local system and displays complete information about their adjustment rules.

private enum WeekOfMonth 
{
   First = 1,
   Second = 2,
   Third = 3,
   Fourth = 4,
   Last = 5,
}

private static void ShowStartAndEndDates()
{
   // Get all time zones from system
   ReadOnlyCollection<TimeZoneInfo> timeZones = TimeZoneInfo.GetSystemTimeZones();
   string[] monthNames = CultureInfo.CurrentCulture.DateTimeFormat.MonthNames;
   // Get each time zone
   foreach (TimeZoneInfo timeZone in timeZones)
   {
      TimeZoneInfo.AdjustmentRule[] adjustments = timeZone.GetAdjustmentRules();
      // Display message for time zones with no adjustments
      if (adjustments.Length == 0)
      {
         Console.WriteLine("{0} has no adjustment rules", timeZone.StandardName);
      }   
      else
      {
         // Handle time zones with 1 or 2+ adjustments differently
         bool showCount = false;
         int ctr = 0;
         string spacer = "";
         
         Console.WriteLine("{0} Adjustment rules", timeZone.StandardName);
         if (adjustments.Length > 1)
         {
            showCount = true;
            spacer = "   ";
         }   
         // Iterate adjustment rules
         foreach (TimeZoneInfo.AdjustmentRule adjustment in adjustments)
         {
            if (showCount)
            { 
               Console.WriteLine("   Adjustment rule #{0}", ctr+1);
               ctr++;
            }
            // Display general adjustment information
            Console.WriteLine("{0}   Start Date: {1:D}", spacer, adjustment.DateStart);
            Console.WriteLine("{0}   End Date: {1:D}", spacer, adjustment.DateEnd);
            Console.WriteLine("{0}   Time Change: {1}:{2:00} hours", spacer, 
                              adjustment.DaylightDelta.Hours, adjustment.DaylightDelta.Minutes);
            // Get transition start information
            TimeZoneInfo.TransitionTime transitionStart = adjustment.DaylightTransitionStart;
            Console.Write("{0}   Annual Start: ", spacer);
            if (transitionStart.IsFixedDateRule)
            {
               Console.WriteLine("On {0} {1} at {2:t}", 
                                 monthNames[transitionStart.Month - 1], 
                                 transitionStart.Day, 
                                 transitionStart.TimeOfDay);
            }
            else
            {
               Console.WriteLine("The {0} {1} of {2} at {3:t}", 
                                 ((WeekOfMonth)transitionStart.Week).ToString(), 
                                 transitionStart.DayOfWeek.ToString(), 
                                 monthNames[transitionStart.Month - 1], 
                                 transitionStart.TimeOfDay);
            }
            // Get transition end information
            TimeZoneInfo.TransitionTime transitionEnd = adjustment.DaylightTransitionEnd;
            Console.Write("{0}   Annual End: ", spacer);
            if (transitionEnd.IsFixedDateRule)
            {
               Console.WriteLine("On {0} {1} at {2:t}", 
                                 monthNames[transitionEnd.Month - 1], 
                                 transitionEnd.Day, 
                                 transitionEnd.TimeOfDay);
            }
            else
            {
               Console.WriteLine("The {0} {1} of {2} at {3:t}", 
                                 ((WeekOfMonth)transitionEnd.Week).ToString(), 
                                 transitionEnd.DayOfWeek.ToString(), 
                                 monthNames[transitionEnd.Month - 1], 
                                 transitionEnd.TimeOfDay);
            }
         }
      }   
      Console.WriteLine();
   } 
}
Private Enum WeekOfMonth As Integer
   First = 1
   Second = 2
   Third = 3
   Fourth = 4
   Last = 5
End Enum

Private Sub ShowStartAndEndDates()
   ' Get all time zones from system
   Dim timeZones As ReadOnlyCollection(Of TimeZoneInfo) = TimeZoneInfo.GetSystemTimeZones()
   ' Get each time zone
   For Each timeZone As TimeZoneInfo In timeZones
      Dim adjustments() As TimeZoneInfo.AdjustmentRule = timeZone.GetAdjustmentRules()
      ' Display message for time zones with no adjustments
      If adjustments.Length = 0 Then
         Console.WriteLine("{0} has no adjustment rules", timeZone.StandardName)
      Else
         ' Handle time zones with 1 or 2+ adjustments differently
         Dim showCount As Boolean = False
         Dim ctr As Integer = 0
         Dim spacer As String = ""
         
         Console.WriteLine("{0} Adjustment rules", timeZone.StandardName)
         If adjustments.Length > 1 Then showCount = True : spacer = "   "  
         ' Iterate adjustment rules
         For Each adjustment As TimeZoneInfo.AdjustmentRule in adjustments
            If showCount Then 
               Console.WriteLine("   Adjustment rule #{0}", ctr+1)
               ctr += 1
            End If
            ' Display general adjustment information
            Console.WriteLine("{0}   Start Date: {1:D}", spacer, adjustment.DateStart)
            Console.WriteLine("{0}   End Date: {1:D}", spacer, adjustment.DateEnd)
            Console.WriteLine("{0}   Time Change: {1}:{2:00} hours", spacer, _
                              adjustment.DaylightDelta.Hours, adjustment.DaylightDelta.Minutes)
            ' Get transition start information
            Dim transitionStart As TimeZoneInfo.TransitionTime = adjustment.DaylightTransitionStart
            Console.Write("{0}   Annual Start: ", spacer)
            If transitionStart.IsFixedDateRule Then
               Console.WriteLine("On {0} {1} at {2:t}", _
                                 MonthName(transitionStart.Month), _
                                 transitionStart.Day, _
                                 transitionStart.TimeOfDay)
            Else
               Console.WriteLine("The {0} {1} of {2} at {3:t}", _
                                 CType(transitionStart.Week, WeekOfMonth).ToString(), _
                                 transitionStart.DayOfWeek.ToString(), _
                                 MonthName(transitionStart.Month), _
                                 transitionStart.TimeOfDay)
            End If
            ' Get transition end information
            Dim transitionEnd As TimeZoneInfo.TransitionTime = adjustment.DaylightTransitionEnd
                              
            Console.Write("{0}   Annual End: ", spacer)
            If transitionEnd.IsFixedDateRule Then
               Console.WriteLine("On {0} {1} at {2:t}", _
                                 MonthName(transitionEnd.Month), _
                                 transitionEnd.Day, _
                                 transitionEnd.TimeOfDay)
            Else
               Console.WriteLine("The {0} {1} of {2} at {3:t}", _
                                 CType(transitionEnd.Week, WeekOfMonth).ToString(), _
                                 transitionEnd.DayOfWeek.ToString(), _
                                 MonthName(transitionEnd.Month), _
                                 transitionEnd.TimeOfDay)
            End If
         Next
      End If   
      Console.WriteLine()
   Next 
End Sub

以下是輸出的一小部分的範例所產生。The following is a small portion of the output that is generated by the example. 確切的輸出會有所不同的作業系統和執行範例的日期。The exact output will vary depending on the operating system and the date on which the example is run.

Morocco Standard Time Adjustment rules  
   Adjustment rule #1  
      Start Date: Tuesday, January 01, 2008  
      End Date: Wednesday, December 31, 2008  
      Time Change: 1:00 hours  
      Annual Start: The Last Saturday of May at 11:59 PM  
      Annual End: The Last Sunday of August at 11:59 PM  
   Adjustment rule #2  
      Start Date: Thursday, January 01, 2009  
      End Date: Thursday, December 31, 2009  
      Time Change: 1:00 hours  
      Annual Start: The Last Sunday of May at 11:59 PM  
      Annual End: The Third Thursday of August at 11:59 PM  

Coordinated Universal Time has no adjustment rules  

GMT Standard Time Adjustment rules  
   Start Date: Monday, January 01, 0001  
   End Date: Friday, December 31, 9999  
   Time Change: 1:00 hours  
   Annual Start: The Last Sunday of March at 1:00 AM  
   Annual End: The Last Sunday of October at 2:00 AM  

Greenwich Standard Time has no adjustment rules  

W. Europe Standard Time Adjustment rules  
   Start Date: Monday, January 01, 0001  
   End Date: Friday, December 31, 9999  
   Time Change: 1:00 hours  
   Annual Start: The Last Sunday of March at 2:00 AM  
   Annual End: The Last Sunday of October at 3:00 AM  

Central Europe Standard Time Adjustment rules  
   Start Date: Monday, January 01, 0001  
   End Date: Friday, December 31, 9999  
   Time Change: 1:00 hours  
   Annual Start: The Last Sunday of March at 2:00 AM  
   Annual End: The Last Sunday of October at 3:00 AM  

Romance Standard Time Adjustment rules  
   Start Date: Monday, January 01, 0001  
   End Date: Friday, December 31, 9999  
   Time Change: 1:00 hours  
   Annual Start: The Last Sunday of March at 2:00 AM  
   Annual End: The Last Sunday of October at 3:00 AM  

Central European Standard Time Adjustment rules  
   Start Date: Monday, January 01, 0001  
   End Date: Friday, December 31, 9999  
   Time Change: 1:00 hours  
   Annual Start: The Last Sunday of March at 2:00 AM  
   Annual End: The Last Sunday of October at 3:00 AM  

W. Central Africa Standard Time has no adjustment rules  

備註

TimeZoneInfo.AdjustmentRule類別會定義有效的開始和結束日期的特定時間變更的日光節約時間的來回分別,以及其差異 (確切的調整會導致時區標準時間變更的數量)。The TimeZoneInfo.AdjustmentRule class defines the effective start and end dates of a particular time change to and from daylight saving time, respectively, as well as its delta (the exact amount by which the adjustment causes the time zone's standard time to change). 此外,兩個屬性會傳回TimeZoneInfo.TransitionTime定義標準時間的每個轉換發生時的物件。In addition, two properties return TimeZoneInfo.TransitionTime objects that define when each transition to and from standard time occurs.

注意

執行個體TimeZoneInfo.AdjustmentRule類別是不變。An instance of the TimeZoneInfo.AdjustmentRule class is immutable. 一旦建立物件之後,就無法修改其值。Once an object has been created, its values cannot be modified.

若要建立TimeZoneInfo.AdjustmentRule物件,請呼叫static(Shared在 Visual Basic 中)TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule方法。To create a TimeZoneInfo.AdjustmentRule object, call the static (Shared in Visual Basic) TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule method. 然後,您就可以提供陣列TimeZoneInfo.AdjustmentRule物件為兩個多載TimeZoneInfo.CreateCustomTimeZone方法。You can then supply an array of TimeZoneInfo.AdjustmentRule objects to two of the overloads of the TimeZoneInfo.CreateCustomTimeZone method. 若要擷取特定時區的調整規則,請呼叫其TimeZoneInfo.GetAdjustmentRules方法,以傳回的陣列TimeZoneInfo.AdjustmentRule物件。To retrieve the adjustment rules of a particular time zone, call its TimeZoneInfo.GetAdjustmentRules method, which returns an array of TimeZoneInfo.AdjustmentRule objects.

屬性

DateEnd DateEnd DateEnd DateEnd

取得調整規則停止生效的日期。Gets the date when the adjustment rule ceases to be in effect.

DateStart DateStart DateStart DateStart

取得調整規則生效的日期。Gets the date when the adjustment rule takes effect.

DaylightDelta DaylightDelta DaylightDelta DaylightDelta

取得形成時區日光節約時間所需的時間量。Gets the amount of time that is required to form the time zone's daylight saving time. 這個時間量會加入至時區的 Coordinated Universal Time (UTC) 位移。This amount of time is added to the time zone's offset from Coordinated Universal Time (UTC).

DaylightTransitionEnd DaylightTransitionEnd DaylightTransitionEnd DaylightTransitionEnd

取得每年從日光節約時間轉換回標準時間的相關資訊。Gets information about the annual transition from daylight saving time back to standard time.

DaylightTransitionStart DaylightTransitionStart DaylightTransitionStart DaylightTransitionStart

取得每年從標準時間轉換回日光節約時間的相關資訊。Gets information about the annual transition from standard time to daylight saving time.

方法

CreateAdjustmentRule(DateTime, DateTime, TimeSpan, TimeZoneInfo+TransitionTime, TimeZoneInfo+TransitionTime) CreateAdjustmentRule(DateTime, DateTime, TimeSpan, TimeZoneInfo+TransitionTime, TimeZoneInfo+TransitionTime) CreateAdjustmentRule(DateTime, DateTime, TimeSpan, TimeZoneInfo+TransitionTime, TimeZoneInfo+TransitionTime) CreateAdjustmentRule(DateTime, DateTime, TimeSpan, TimeZoneInfo+TransitionTime, TimeZoneInfo+TransitionTime)

為特定時區建立新的調整規則。Creates a new adjustment rule for a particular time zone.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(Inherited from Object)
Equals(TimeZoneInfo+AdjustmentRule) Equals(TimeZoneInfo+AdjustmentRule) Equals(TimeZoneInfo+AdjustmentRule) Equals(TimeZoneInfo+AdjustmentRule)

判斷目前的 TimeZoneInfo.AdjustmentRule 物件是否等於第二個 TimeZoneInfo.AdjustmentRule 物件。Determines whether the current TimeZoneInfo.AdjustmentRule object is equal to a second TimeZoneInfo.AdjustmentRule object.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

做為雜湊函式,用於雜湊演算法和資料結構,例如雜湊資料表。Serves as a hash function for hashing algorithms and data structures such as hash tables.

GetType() GetType() GetType() GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

建立目前 Object 的淺層複本 (Shallow Copy)。Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

傳回代表目前物件的字串。Returns a string that represents the current object.

(Inherited from Object)

明確介面實作

IDeserializationCallback.OnDeserialization(Object) IDeserializationCallback.OnDeserialization(Object) IDeserializationCallback.OnDeserialization(Object) IDeserializationCallback.OnDeserialization(Object)

TimeZoneInfo.AdjustmentRule 物件完成還原序列化 (Deserialization) 時執行。Runs when the deserialization of a TimeZoneInfo.AdjustmentRule object is completed.

ISerializable.GetObjectData(SerializationInfo, StreamingContext) ISerializable.GetObjectData(SerializationInfo, StreamingContext) ISerializable.GetObjectData(SerializationInfo, StreamingContext) ISerializable.GetObjectData(SerializationInfo, StreamingContext)

SerializationInfo 物件中填入將這個物件序列化時所需的資料。Populates a SerializationInfo object with the data that is required to serialize this object.

適用於

另請參閱