DateTimeOffset.Implicit(DateTime to DateTimeOffset) Operator

Definition

Namespace:

System

Assembly:

System.Runtime.dll

Source:

DateTimeOffset.cs

Defines an implicit conversion of a DateTime object to a DateTimeOffset object.

public:
 static operator DateTimeOffset(DateTime dateTime);

public static implicit operator DateTimeOffset (DateTime dateTime);

static member op_Implicit : DateTime -> DateTimeOffset

Public Shared Widening Operator CType (dateTime As DateTime) As DateTimeOffset

Parameters

dateTime

DateTime

The object to convert.

Returns

DateTimeOffset

The converted object.

Exceptions

ArgumentOutOfRangeException

The Coordinated Universal Time (UTC) date and time that results from applying the offset is earlier than DateTimeOffset.MinValue.

-or-

The UTC date and time that results from applying the offset is later than DateTimeOffset.MaxValue.

Remarks

The Implicit method enables the compiler to automatically convert a DateTime object to a DateTimeOffset object without an explicit casting operator (in C#) or a call to a conversion function (in Visual Basic). It defines a widening conversion that does not involve data loss and does not throw an OverflowException. The Implicit method makes code such as the following possible:

DateTimeOffset timeWithOffset;
timeWithOffset = new DateTime(2008, 7, 3, 18, 45, 0);
Console.WriteLine(timeWithOffset.ToString());

timeWithOffset = DateTime.UtcNow;
Console.WriteLine(timeWithOffset.ToString());

timeWithOffset = DateTime.SpecifyKind(DateTime.Now,
                                      DateTimeKind.Unspecified);
Console.WriteLine(timeWithOffset.ToString());

timeWithOffset = new DateTime(2008, 7, 1, 2, 30, 0) +
                       new TimeSpan(1, 0, 0, 0);
Console.WriteLine(timeWithOffset.ToString());

timeWithOffset = new DateTime(2008, 1, 1, 2, 30, 0);
Console.WriteLine(timeWithOffset.ToString());
// The example produces the following output if run on 3/20/2007
// at 6:25 PM on a computer in the U.S. Pacific Daylight Time zone:
//       7/3/2008 6:45:00 PM -07:00
//       3/21/2007 1:25:52 AM +00:00
//       3/20/2007 6:25:52 PM -07:00
//       7/2/2008 2:30:00 AM -07:00
//       1/1/2008 2:30:00 AM -08:00
//
// The last example shows automatic adaption to the U.S. Pacific Time
// for winter dates.

let timeWithOffset = DateTime(2008, 7, 3, 18, 45, 0)
printfn $"{timeWithOffset}"

let timeWithOffset = DateTime.UtcNow
printfn $"{timeWithOffset}"

let timeWithOffset =
    DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Unspecified)

printfn $"{timeWithOffset}"

let timeWithOffset =
    DateTime(2008, 7, 1, 2, 30, 0)
    + TimeSpan(1, 0, 0, 0)

printfn $"{timeWithOffset}"

let timeWithOffset = DateTime(2008, 1, 1, 2, 30, 0)
printfn $"{timeWithOffset}"

// The example produces the following output if run on 3/20/2007
// at 6:25 PM on a computer in the U.S. Pacific Daylight Time zone:
//       7/3/2008 6:45:00 PM -07:00
//       3/21/2007 1:25:52 AM +00:00
//       3/20/2007 6:25:52 PM -07:00
//       7/2/2008 2:30:00 AM -07:00
//       1/1/2008 2:30:00 AM -08:00
//
// The last example shows automatic adaption to the U.S. Pacific Time
// for winter dates.

   Dim timeWithOffset As DateTimeOffset 
   timeWithOffset = #07/03/2008 6:45PM#
   Console.WriteLine(timeWithOffset.ToString())
   
   timeWithOffset = Date.UtcNow
   Console.WriteLine(timeWithOffset.ToString())
   
   timeWithOffset = Date.SpecifyKind(Date.Now, DateTimeKind.Unspecified)
   Console.WriteLine(timeWithOffset.ToString())

   timeWithOffset = #07/01/2008 2:30AM# + New TimeSpan(1, 0, 0, 0)
   Console.WriteLine(timeWithOffset.ToString())
     
   timeWithOffset = #01/01/2008 2:30AM#
   Console.WriteLine(timeWithOffset.ToString())
   ' The example produces the following output if run on 3/20/2007 
   ' at 6:25 PM on a computer in the U.S. Pacific Daylight Time zone:
   '       7/3/2008 6:45:00 PM -07:00
   '       3/21/2007 1:25:52 AM +00:00
   '       3/20/2007 6:25:52 PM -07:00
   '       7/2/2008 2:30:00 AM -07:00
   '       1/1/2008 2:30:00 AM -08:00
   '
   ' The last example shows automatic adaption to the U.S. Pacific Time
   ' for winter dates.

This method is equivalent to the DateTimeOffset constructor. The offset of the resulting DateTimeOffset object depends on the value of the DateTime.Kind property of the dateTime parameter:

• If the value of the DateTime.Kind property is DateTimeKind.Utc, the date and time of the DateTimeOffset object is set equal to dateTime, and its Offset property is set equal to 0.

• If the value of the DateTime.Kind property is DateTimeKind.Local or DateTimeKind.Unspecified, the date and time of the DateTimeOffset object is set equal to dateTime, and its Offset property is set equal to the offset of the local system's current time zone.

The equivalent method for this operator is DateTimeOffset.DateTimeOffset(DateTime)