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DateTime.Now Property

April 12, 2014

Gets a DateTime object that is set to the current date and time on this computer, expressed as the local time.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
'Declaration
Public Shared ReadOnly Property Now As DateTime

Property Value

Type: System.DateTime
An object whose value is the current local date and time.

The resolution of this property depends on the system timer.

System

Approximate resolution

Windows NT 3.5 and later

10 milliseconds

Windows 98

55 milliseconds

The return value is a DateTime whose Kind property returns DateTimeKind.Local.

NoteNote:

You can also use the Now property to retrieve the current local date and time. 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.

Version Notes

Windows Phone

 System.DateTime.Now.Millisecond.ToString always returns zero on the Windows Phone Emulator.

The following example uses the SpecifyKind method to demonstrate how the Kind property influences the ToLocalTime and ToUniversalTime conversion methods.



' This code example demonstrates the DateTime Kind, Now, and
' UtcNow properties, and the SpecifyKind(), ToLocalTime(), 
' and ToUniversalTime() methods.

Class Example
   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      ' 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(outputBlock, "UtcNow: ..........", saveUtcNow)
      DisplayNow(outputBlock, "Now: .............", saveNow)
      outputBlock.Text &= vbCrLf

      ' Change the Kind property of the current moment to 
      ' DateTimeKind.Utc and display the result.
      myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Utc)
      Display(outputBlock, "Utc: .............", myDt)

      ' Change the Kind property of the current moment to 
      ' DateTimeKind.Local and display the result.
      myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Local)
      Display(outputBlock, "Local: ...........", myDt)

      ' Change the Kind property of the current moment to 
      ' DateTimeKind.Unspecified and display the result.
      myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Unspecified)
      Display(outputBlock, "Unspecified: .....", myDt)
   End Sub 'Main

   ' 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 outputBlock As System.Windows.Controls.TextBlock, 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)
      outputBlock.Text += String.Format("{0} {1}, Kind = {2}", title, dtString, dispDt.Kind) & vbCrLf

      ' 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)
      outputBlock.Text += String.Format("  ToLocalTime:     {0}, Kind = {1}", dtString, dispDt.Kind) & vbCrLf

      ' 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)
      outputBlock.Text += String.Format("  ToUniversalTime: {0}, Kind = {1}", dtString, dispDt.Kind) & vbCrLf
      outputBlock.Text &= vbCrLf
   End Sub 'Display


   ' Display the value and Kind property for DateTime.Now and DateTime.UtcNow.

   Public Shared Sub DisplayNow(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal title As String, ByVal inputDt As DateTime)
      Dim dtString As String = inputDt.ToString(datePatt)
      outputBlock.Text += String.Format("{0} {1}, Kind = {2}", title, dtString, inputDt.Kind) & vbCrLf
   End Sub 'DisplayNow
End Class 'Sample

'
'This code example produces the following results:
'
'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
'


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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