本文整理匯總了VB.NET中System.DateTime.UtcNow屬性的典型用法代碼示例。如果您正苦於以下問題:VB.NET DateTime.UtcNow屬性的具體用法?VB.NET DateTime.UtcNow怎麽用?VB.NET DateTime.UtcNow使用的例子?那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.DateTime
的用法示例。
在下文中一共展示了DateTime.UtcNow屬性的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: Sample
' This code example demonstrates the DateTime Kind, Now, and
' UtcNow properties, and the SpecifyKind(), ToLocalTime(),
' and ToUniversalTime() methods.
Class Sample
Public Shared Sub Main()
' Get the date and time for the current moment, adjusted
' to the local time zone.
Dim saveNow As DateTime = DateTime.Now
' Get the date and time for the current moment expressed
' as coordinated universal time (UTC).
Dim saveUtcNow As DateTime = DateTime.UtcNow
Dim myDt As DateTime
' Display the value and Kind property of the current moment
' expressed as UTC and local time.
DisplayNow("UtcNow: ..........", saveUtcNow)
DisplayNow("Now: .............", saveNow)
Console.WriteLine()
' Change the Kind property of the current moment to
' DateTimeKind.Utc and display the result.
myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Utc)
Display("Utc: .............", myDt)
' Change the Kind property of the current moment to
' DateTimeKind.Local and display the result.
myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Local)
Display("Local: ...........", myDt)
' Change the Kind property of the current moment to
' DateTimeKind.Unspecified and display the result.
myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Unspecified)
Display("Unspecified: .....", myDt)
End Sub
' Display the value and Kind property of a DateTime structure, the
' DateTime structure converted to local time, and the DateTime
' structure converted to universal time.
Public Shared datePatt As String = "M/d/yyyy hh:mm:ss tt"
Public Shared Sub Display(ByVal title As String, ByVal inputDt As DateTime)
Dim dispDt As DateTime = inputDt
Dim dtString As String
' Display the original DateTime.
dtString = dispDt.ToString(datePatt)
Console.WriteLine("{0} {1}, Kind = {2}", title, dtString, dispDt.Kind)
' Convert inputDt to local time and display the result.
' If inputDt.Kind is DateTimeKind.Utc, the conversion is performed.
' If inputDt.Kind is DateTimeKind.Local, the conversion is not performed.
' If inputDt.Kind is DateTimeKind.Unspecified, the conversion is
' performed as if inputDt was universal time.
dispDt = inputDt.ToLocalTime()
dtString = dispDt.ToString(datePatt)
Console.WriteLine(" ToLocalTime: {0}, Kind = {1}", dtString, dispDt.Kind)
' Convert inputDt to universal time and display the result.
' If inputDt.Kind is DateTimeKind.Utc, the conversion is not performed.
' If inputDt.Kind is DateTimeKind.Local, the conversion is performed.
' If inputDt.Kind is DateTimeKind.Unspecified, the conversion is
' performed as if inputDt was local time.
dispDt = inputDt.ToUniversalTime()
dtString = dispDt.ToString(datePatt)
Console.WriteLine(" ToUniversalTime: {0}, Kind = {1}", dtString, dispDt.Kind)
Console.WriteLine()
End Sub
' Display the value and Kind property for DateTime.Now and DateTime.UtcNow.
Public Shared Sub DisplayNow(ByVal title As String, ByVal inputDt As DateTime)
Dim dtString As String = inputDt.ToString(datePatt)
Console.WriteLine("{0} {1}, Kind = {2}", title, dtString, inputDt.Kind)
End Sub
End Class
輸出:
UtcNow: .......... 5/6/2005 09:34:42 PM, Kind = Utc Now: ............. 5/6/2005 02:34:42 PM, Kind = Local Utc: ............. 5/6/2005 02:34:42 PM, Kind = Utc ToLocalTime: 5/6/2005 07:34:42 AM, Kind = Local ToUniversalTime: 5/6/2005 02:34:42 PM, Kind = Utc Local: ........... 5/6/2005 02:34:42 PM, Kind = Local ToLocalTime: 5/6/2005 02:34:42 PM, Kind = Local ToUniversalTime: 5/6/2005 09:34:42 PM, Kind = Utc Unspecified: ..... 5/6/2005 02:34:42 PM, Kind = Unspecified ToLocalTime: 5/6/2005 07:34:42 AM, Kind = Local ToUniversalTime: 5/6/2005 09:34:42 PM, Kind = Utc
示例2: DateTime.UtcNow()
Public Class MainClass
Public Shared Sub Main()
'Date Time examples
Dim dteNow As Date = Now()
Dim dteToday As Date = Today()
Dim dteGMT As DateTime = DateTime.UtcNow()
Console.WriteLine(dteNow)
Console.WriteLine(dteToday)
Console.WriteLine(dteGMT)
End Sub
End Class