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TimeZoneInfo.TransitionTime.Day Property

Gets the day on which the time change occurs.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public ReadOnly Property Day As Integer

Property Value

Type: System.Int32
The day on which the time change occurs.

The Day property returns a valid value only if the IsFixedDateRule property is true.

The Day property value corresponds to the value of the day parameter of the CreateFixedDateRule method. If its value is greater than the number of days in the month of the transition, the transition occurs on the last day of the month.

The Day property indicates the day of the month on which a fixed-date rule is applied (for example, April 15). In contrast, the DayOfWeek property indicates the day of the week on which a floating-date rule is applied (for example, the second Sunday of November).

The following example enumerates the time zones found on the local computer and displays transition time information for all fixed-date transitions. The time information includes the day on which the time change occurs.

Private Sub GetFixedTransitionTimes()
   Dim timeZones As ReadOnlyCollection(Of TimeZoneInfo) = TimeZoneInfo.GetSystemTimeZones()
   For Each zone As TimeZoneInfo In timeZones
      Dim adjustmentRules() As TimeZoneInfo.AdjustmentRule = zone.GetAdjustmentRules()
      For Each adjustmentRule As TimeZoneInfo.AdjustmentRule in adjustmentRules
         Dim daylightStart As TimeZoneInfo.TransitionTime = adjustmentRule.DaylightTransitionStart
         If daylightStart.IsFixedDateRule Then
            Console.WriteLine("For {0}, daylight savings time begins at {1:t} on {2} {3} from {4:d} to {5:d}.", _
                              zone.StandardName, _
                              daylightStart.TimeOfDay, _ 
                              MonthName(daylightStart.Month), _
                              daylightStart.Day, _
                              adjustmentRule.DateStart, _
                              adjustmentRule.DateEnd)
         End If 
         Dim daylightEnd As TimeZoneInfo.TransitionTime = adjustmentRule.DaylightTransitionEnd
         If daylightEnd.IsFixedDateRule Then
            Console.WriteLine("For {0}, daylight savings time ends at {1:t} on {2} {3} from {4:d} to {5:d}.", _
                              zone.StandardName, _
                              daylightEnd.TimeOfDay, _ 
                              MonthName(daylightEnd.Month), _
                              daylightEnd.Day, _
                              adjustmentRule.DateStart, _
                              adjustmentRule.DateEnd)
         End If    
      Next 
   Next    
End Sub

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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