DateTimeOffset.ToOffset(TimeSpan) 메서드
정의
중요
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현재 DateTimeOffset 개체의 값을 오프셋 값으로 지정된 날짜 및 시간으로 변환합니다.
public:
DateTimeOffset ToOffset(TimeSpan offset);
public DateTimeOffset ToOffset(TimeSpan offset);
member this.ToOffset : TimeSpan -> DateTimeOffset
Public Function ToOffset (offset As TimeSpan) As DateTimeOffset
매개 변수
- offset
- TimeSpan
값을 변환할 오프셋 DateTimeOffset 입니다.
반품
원래 DateTimeOffset 개체와 동일하지만(즉, ToUniversalTime() 메서드가 동일한 시간을 반환) 속성이 Offset 설정된 offset개체입니다.
예외
결과 DateTimeOffset 개체의 값은 DateTimeDateTimeOffset.MinValue보다 이전입니다.
-또는-
결과 DateTimeOffset 개체의 값은 DateTimeDateTimeOffset.MaxValue보다 늦습니다.
예제
다음 예제에서는 메서드를 사용하여 ToOffset 개체를 다른 오프셋이 있는 DateTimeOffset 개체로 DateTimeOffset 변환하는 방법을 보여 줍니다.
using System;
public class DateTimeOffsetConversion
{
private static DateTimeOffset sourceTime;
public static void Main()
{
DateTimeOffset targetTime;
sourceTime = new DateTimeOffset(2007, 9, 1, 9, 30, 0,
new TimeSpan(-5, 0, 0));
// Convert to same time (return sourceTime unchanged)
targetTime = sourceTime.ToOffset(new TimeSpan(-5, 0, 0));
ShowDateAndTimeInfo(targetTime);
// Convert to UTC (0 offset)
targetTime = sourceTime.ToOffset(TimeSpan.Zero);
ShowDateAndTimeInfo(targetTime);
// Convert to 8 hours behind UTC
targetTime = sourceTime.ToOffset(new TimeSpan(-8, 0, 0));
ShowDateAndTimeInfo(targetTime);
// Convert to 3 hours ahead of UTC
targetTime = sourceTime.ToOffset(new TimeSpan(3, 0, 0));
ShowDateAndTimeInfo(targetTime);
}
private static void ShowDateAndTimeInfo(DateTimeOffset newTime)
{
Console.WriteLine("{0} converts to {1}", sourceTime, newTime);
Console.WriteLine("{0} and {1} are equal: {2}",
sourceTime, newTime, sourceTime.Equals(newTime));
Console.WriteLine("{0} and {1} are identical: {2}",
sourceTime, newTime,
sourceTime.EqualsExact(newTime));
Console.WriteLine();
}
}
//
// The example displays the following output:
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 9:30:00 AM -05:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 9:30:00 AM -05:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 9:30:00 AM -05:00 are identical: True
//
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 2:30:00 PM +00:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 2:30:00 PM +00:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 2:30:00 PM +00:00 are identical: False
//
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 6:30:00 AM -08:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 6:30:00 AM -08:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 6:30:00 AM -08:00 are identical: False
//
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 5:30:00 PM +03:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 5:30:00 PM +03:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 5:30:00 PM +03:00 are identical: False
open System
let sourceTime = DateTimeOffset(2007, 9, 1, 9, 30, 0, TimeSpan(-5, 0, 0))
let showDateAndTimeInfo newTime =
printfn $"{sourceTime} converts to {newTime}"
printfn $"{sourceTime} and {newTime} are equal: {sourceTime.Equals newTime}"
printfn $"{sourceTime} and {newTime} are identical: {sourceTime.EqualsExact newTime}\n"
[<EntryPoint>]
let main _ =
// Convert to same time (return sourceTime unchanged)
let targetTime = sourceTime.ToOffset(TimeSpan(-5, 0, 0))
showDateAndTimeInfo targetTime
// Convert to UTC (0 offset)
let targetTime = sourceTime.ToOffset TimeSpan.Zero
showDateAndTimeInfo targetTime
// Convert to 8 hours behind UTC
let targetTime = sourceTime.ToOffset(TimeSpan(-8, 0, 0))
showDateAndTimeInfo targetTime
// Convert to 3 hours ahead of UTC
let targetTime = sourceTime.ToOffset(TimeSpan(3, 0, 0))
showDateAndTimeInfo targetTime
0
// The example displays the following output:
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 9:30:00 AM -05:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 9:30:00 AM -05:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 9:30:00 AM -05:00 are identical: True
//
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 2:30:00 PM +00:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 2:30:00 PM +00:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 2:30:00 PM +00:00 are identical: False
//
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 6:30:00 AM -08:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 6:30:00 AM -08:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 6:30:00 AM -08:00 are identical: False
//
// 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 5:30:00 PM +03:00
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 5:30:00 PM +03:00 are equal: True
// 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 5:30:00 PM +03:00 are identical: False
Module DateTimeOffsetConversion
Private sourceTime As New DateTimeOffset(#9/1/2007 9:30AM#, _
New TimeSpan(-5, 0, 0))
Public Sub Main()
Dim targetTime As DateTimeOffset
' Convert to same time (return sourceTime unchanged)
targetTime = sourceTime.ToOffset(New TimeSpan(-5, 0, 0))
ShowDateAndTimeInfo(targetTime)
' Convert to UTC (0 offset)
targetTime = sourceTime.ToOffset(TimeSpan.Zero)
ShowDateAndTimeInfo(targetTime)
' Convert to 8 hours behind UTC
targetTime = sourceTime.ToOffset(New TimeSpan(-8, 0, 0))
ShowDateAndTimeInfo(targetTime)
' Convert to 3 hours ahead of UTC
targetTime = sourceTime.ToOffset(New TimeSpan(3, 0, 0))
ShowDateAndTimeInfo(targetTime)
End Sub
Private Sub ShowDateAndTimeInfo(newTime As DateTimeOffset)
Console.WriteLine("{0} converts to {1}", sourceTime, newTime)
Console.WriteLine("{0} and {1} are equal: {2}", _
sourceTime, newTime, sourceTime.Equals(newTime))
Console.WriteLine("{0} and {1} are identical: {2}", _
sourceTime, newTime, _
sourceTime.EqualsExact(newTime))
Console.WriteLine()
End Sub
End Module
'
' The example displays the following output:
' 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 9:30:00 AM -05:00
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 9:30:00 AM -05:00 are equal: True
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 9:30:00 AM -05:00 are identical: True
'
' 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 2:30:00 PM +00:00
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 2:30:00 PM +00:00 are equal: True
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 2:30:00 PM +00:00 are identical: False
'
' 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 6:30:00 AM -08:00
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 6:30:00 AM -08:00 are equal: True
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 6:30:00 AM -08:00 are identical: False
'
' 9/1/2007 9:30:00 AM -05:00 converts to 9/1/2007 5:30:00 PM +03:00
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 5:30:00 PM +03:00 are equal: True
' 9/1/2007 9:30:00 AM -05:00 and 9/1/2007 5:30:00 PM +03:00 are identical: False
설명
메서드는 ToOffset 메서드를 호출하는 대신 사용할 수 있습니다 TimeZoneInfo.ConvertTime(DateTimeOffset, TimeZoneInfo) . UTC(협정 세계시)의 표준 시간대 오프셋이 알려진 경우 한 표준 시간대에서 다른 표준 시간대로 간단한 변환을 수행하는 데 유용할 수 있습니다. 그러나 원래 DateTimeOffset 개체나 메서드 호출에서 반환된 새 DateTimeOffset 개체가 특정 표준 시간대와 명확하게 관련되지 않으므로 변환 시 표준 시간대 조정 규칙을 적용하지 않습니다.