TimeZoneInfo.ConvertTimeToUtc Méthode
Définition
Important
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Convertit une date et une heure en temps universel coordonné (UTC, Universal Time Coordinated).
Surcharges
ConvertTimeToUtc(DateTime) |
Convertit la date et l'heure spécifiées en temps universel coordonné (UTC, Universal Time Coordinated). |
ConvertTimeToUtc(DateTime, TimeZoneInfo) |
Convertit l'heure d'un fuseau horaire spécifié en temps universel coordonné (UTC, Universal Time Coordinated). |
ConvertTimeToUtc(DateTime)
- Source:
- TimeZoneInfo.cs
- Source:
- TimeZoneInfo.cs
- Source:
- TimeZoneInfo.cs
Convertit la date et l'heure spécifiées en temps universel coordonné (UTC, Universal Time Coordinated).
public:
static DateTime ConvertTimeToUtc(DateTime dateTime);
public static DateTime ConvertTimeToUtc (DateTime dateTime);
static member ConvertTimeToUtc : DateTime -> DateTime
Public Shared Function ConvertTimeToUtc (dateTime As DateTime) As DateTime
Paramètres
- dateTime
- DateTime
Date et heure à convertir.
Retours
Temps universel coordonné qui correspond au paramètre dateTime
. La propriété DateTime de la valeur Kind a toujours la valeur Utc.
Exceptions
TimeZoneInfo.Local.IsInvalidDateTime(
dateTime
)
retourne true
.
Exemples
L’exemple suivant illustre la conversion des valeurs de temps dont Kind la propriété est DateTimeKind.Utc, DateTimeKind.Localet DateTimeKind.Unspecified, respectivement. Il illustre également la conversion d’heures ambiguës et non valides.
DateTime datNowLocal = DateTime.Now;
Console.WriteLine("Converting {0}, Kind {1}:", datNowLocal, datNowLocal.Kind);
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNowLocal), TimeZoneInfo.ConvertTimeToUtc(datNowLocal).Kind);
Console.WriteLine();
DateTime datNowUtc = DateTime.UtcNow;
Console.WriteLine("Converting {0}, Kind {1}", datNowUtc, datNowUtc.Kind);
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNowUtc), TimeZoneInfo.ConvertTimeToUtc(datNowUtc).Kind);
Console.WriteLine();
DateTime datNow = new DateTime(2007, 10, 26, 13, 32, 00);
Console.WriteLine("Converting {0}, Kind {1}", datNow, datNow.Kind);
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNow), TimeZoneInfo.ConvertTimeToUtc(datNow).Kind);
Console.WriteLine();
DateTime datAmbiguous = new DateTime(2007, 11, 4, 1, 30, 00);
Console.WriteLine("Converting {0}, Kind {1}, Ambiguous {2}", datAmbiguous, datAmbiguous.Kind, TimeZoneInfo.Local.IsAmbiguousTime(datAmbiguous));
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datAmbiguous), TimeZoneInfo.ConvertTimeToUtc(datAmbiguous).Kind);
Console.WriteLine();
DateTime datInvalid = new DateTime(2007, 3, 11, 02, 30, 00);
Console.WriteLine("Converting {0}, Kind {1}, Invalid {2}", datInvalid, datInvalid.Kind, TimeZoneInfo.Local.IsInvalidTime(datInvalid));
try
{
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datInvalid), TimeZoneInfo.ConvertTimeToUtc(datInvalid).Kind);
}
catch (ArgumentException e)
{
Console.WriteLine(" {0}: Cannot convert {1} to UTC.", e.GetType().Name, datInvalid);
}
Console.WriteLine();
DateTime datNearMax = new DateTime(9999, 12, 31, 22, 00, 00);
Console.WriteLine("Converting {0}, Kind {1}", datNearMax, datNearMax.Kind);
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNearMax), TimeZoneInfo.ConvertTimeToUtc(datNearMax).Kind);
Console.WriteLine();
//
// This example produces the following output if the local time zone
// is Pacific Standard Time:
//
// Converting 8/31/2007 2:26:28 PM, Kind Local:
// ConvertTimeToUtc: 8/31/2007 9:26:28 PM, Kind Utc
//
// Converting 8/31/2007 9:26:28 PM, Kind Utc
// ConvertTimeToUtc: 8/31/2007 9:26:28 PM, Kind Utc
//
// Converting 10/26/2007 1:32:00 PM, Kind Unspecified
// ConvertTimeToUtc: 10/26/2007 8:32:00 PM, Kind Utc
//
// Converting 11/4/2007 1:30:00 AM, Kind Unspecified, Ambiguous True
// ConvertTimeToUtc: 11/4/2007 9:30:00 AM, Kind Utc
//
// Converting 3/11/2007 2:30:00 AM, Kind Unspecified, Invalid True
// ArgumentException: Cannot convert 3/11/2007 2:30:00 AM to UTC.
//
// Converting 12/31/9999 10:00:00 PM, Kind Unspecified
// ConvertTimeToUtc: 12/31/9999 11:59:59 PM, Kind Utc
//
let datNowLocal = DateTime.Now
printfn $"Converting {datNowLocal}, Kind {datNowLocal.Kind}:"
printfn $" ConvertTimeToUtc: {TimeZoneInfo.ConvertTimeToUtc datNowLocal}, Kind {TimeZoneInfo.ConvertTimeToUtc(datNowLocal).Kind}\n"
let datNowUtc = DateTime.UtcNow
printfn $"Converting {datNowUtc}, Kind {datNowUtc.Kind}"
printfn $" ConvertTimeToUtc: {TimeZoneInfo.ConvertTimeToUtc datNowUtc}, Kind {TimeZoneInfo.ConvertTimeToUtc(datNowUtc).Kind}\n"
let datNow = DateTime(2007, 10, 26, 13, 32, 00)
printfn $"Converting {datNow}, Kind {datNow.Kind}"
printfn $" ConvertTimeToUtc: {TimeZoneInfo.ConvertTimeToUtc datNow}, Kind {TimeZoneInfo.ConvertTimeToUtc(datNow).Kind}\n"
let datAmbiguous = DateTime(2007, 11, 4, 1, 30, 00)
printfn $"Converting {datAmbiguous}, Kind {datAmbiguous.Kind}, Ambiguous {TimeZoneInfo.Local.IsAmbiguousTime datAmbiguous}"
printfn $" ConvertTimeToUtc: {TimeZoneInfo.ConvertTimeToUtc datAmbiguous}, Kind {TimeZoneInfo.ConvertTimeToUtc(datAmbiguous).Kind}\n"
let datInvalid = DateTime(2007, 3, 11, 02, 30, 00)
printfn $"Converting {datInvalid}, Kind {datInvalid.Kind}, Invalid {TimeZoneInfo.Local.IsInvalidTime datInvalid}"
try
printfn $" ConvertTimeToUtc: {TimeZoneInfo.ConvertTimeToUtc datInvalid}, Kind {TimeZoneInfo.ConvertTimeToUtc(datInvalid).Kind}"
with :? ArgumentException as e ->
printfn $" {e.GetType().Name}: Cannot convert {datInvalid} to UTC."
printfn ""
let datNearMax = DateTime(9999, 12, 31, 22, 00, 00)
printfn $"Converting {datNearMax}, Kind {datNearMax.Kind}"
printfn $" ConvertTimeToUtc: {TimeZoneInfo.ConvertTimeToUtc datNearMax}, Kind {TimeZoneInfo.ConvertTimeToUtc(datNearMax).Kind}\n"
//
// This example produces the following output if the local time zone
// is Pacific Standard Time:
//
// Converting 8/31/2007 2:26:28 PM, Kind Local:
// ConvertTimeToUtc: 8/31/2007 9:26:28 PM, Kind Utc
//
// Converting 8/31/2007 9:26:28 PM, Kind Utc
// ConvertTimeToUtc: 8/31/2007 9:26:28 PM, Kind Utc
//
// Converting 10/26/2007 1:32:00 PM, Kind Unspecified
// ConvertTimeToUtc: 10/26/2007 8:32:00 PM, Kind Utc
//
// Converting 11/4/2007 1:30:00 AM, Kind Unspecified, Ambiguous True
// ConvertTimeToUtc: 11/4/2007 9:30:00 AM, Kind Utc
//
// Converting 3/11/2007 2:30:00 AM, Kind Unspecified, Invalid True
// ArgumentException: Cannot convert 3/11/2007 2:30:00 AM to UTC.
//
// Converting 12/31/9999 10:00:00 PM, Kind Unspecified
// ConvertTimeToUtc: 12/31/9999 11:59:59 PM, Kind Utc
//
Dim datNowLocal As Date = Date.Now
Console.WriteLine("Converting {0}, Kind {1}:", datNowLocal, datNowLocal.Kind)
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNowLocal), TimeZoneInfo.ConvertTimeToUtc(datNowLocal).Kind)
Console.WriteLine()
Dim datNowUtc As Date = Date.UtcNow
Console.WriteLine("Converting {0}, Kind {1}", datNowUtc, datNowUtc.Kind)
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNowUtc), TimeZoneInfo.ConvertTimeToUtc(datNowUtc).Kind)
Console.WriteLine()
Dim datNow As Date = CDate("10/26/2007 1:32:00 PM")
Console.WriteLine("Converting {0}, Kind {1}", datNow, datNow.Kind)
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNow), TimeZoneInfo.ConvertTimeToUtc(datNow).Kind)
Console.WriteLine()
Dim datAmbiguous As Date = #11/4/2007 1:30:00AM#
Console.WriteLine("Converting {0}, Kind {1}, Ambiguous {2}", datAmbiguous, datAmbiguous.Kind, TimeZoneInfo.Local.IsAmbiguousTime(datAmbiguous))
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datAmbiguous), TimeZoneInfo.ConvertTimeToUtc(datAmbiguous).Kind)
Console.WriteLine()
Dim datInvalid As Date = #03/11/2007 2:30:00AM#
Console.WriteLine("Converting {0}, Kind {1}, Invalid {2}", datInvalid, datInvalid.Kind, TimeZoneInfo.Local.IsInvalidTime(datInvalid))
Try
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datInvalid), TimeZoneInfo.ConvertTimeToUtc(datInvalid).Kind)
Catch e As ArgumentException
Console.WriteLine(" {0}: Cannot convert {1} to UTC.", e.GetType().Name, datInvalid)
End Try
Console.WriteLine()
Dim datNearMax As Date = #12/31/9999 10:00:00PM#
Console.WriteLine("Converting {0}, Kind {1}", datNearMax, datNearMax.Kind)
Console.WriteLine(" ConvertTimeToUtc: {0}, Kind {1}", TimeZoneInfo.ConvertTimeToUtc(datNearMax), TimeZoneInfo.ConvertTimeToUtc(datNearMax).Kind)
Console.WriteLine()
'
' This example produces the following output if the local time zone
' is Pacific Standard Time:
'
' Converting 8/31/2007 2:26:28 PM, Kind Local:
' ConvertTimeToUtc: 8/31/2007 9:26:28 PM, Kind Utc
'
' Converting 8/31/2007 9:26:28 PM, Kind Utc
' ConvertTimeToUtc: 8/31/2007 9:26:28 PM, Kind Utc
'
' Converting 10/26/2007 1:32:00 PM, Kind Unspecified
' ConvertTimeToUtc: 10/26/2007 8:32:00 PM, Kind Utc
'
' Converting 11/4/2007 1:30:00 AM, Kind Unspecified, Ambiguous True
' ConvertTimeToUtc: 11/4/2007 9:30:00 AM, Kind Utc
'
' Converting 3/11/2007 2:30:00 AM, Kind Unspecified, Invalid True
' ArgumentException: Cannot convert 3/11/2007 2:30:00 AM to UTC.
'
' Converting 12/31/9999 10:00:00 PM, Kind Unspecified
' ConvertTimeToUtc: 12/31/9999 11:59:59 PM, Kind Utc
Remarques
La conversion exacte effectuée dépend de la valeur de la Kind propriété du dateTime
paramètre, comme le montre le tableau suivant.
Propriété DateTime.Kind | Conversion |
---|---|
DateTimeKind.Local | Convertit l’heure locale en temps universel coordonné (UTC). |
DateTimeKind.Unspecified |
dateTime Suppose que est l’heure locale et convertit l’heure locale en heure UTC. |
DateTimeKind.Utc | Retourne dateTime inchangé. |
Si dateTime
correspond à une heure locale ambiguë, cette méthode suppose qu’il s’agit d’une heure locale standard. Si dateTime
correspond à une heure locale non valide, la méthode lève un ArgumentException.
Notes
Si le fuseau horaire local de l’ordinateur actuel inclut plusieurs règles d’ajustement, cette surcharge de la ConvertTimeToUtc méthode peut retourner des résultats qui diffèrent des TimeZone.ToUniversalTime méthodes et DateTime.ToUniversalTime .
TimeZone.ToUniversalTime applique toujours la règle d’ajustement actuelle à la conversion de fuseau horaire, qu’elle se trouve ou non dateTime
dans sa plage de dates. Et lors de l’exécution sur .NET Framework 3.5, DateTime.ToUniversalTime applique également la règle d’ajustement actuelle à la conversion de fuseau horaire, qu’elle se trouve ou non dateTime
dans sa plage de dates.
Si l’équivalent UTC de dateTime
est antérieur DateTime.MinValue ou ultérieur à , DateTime.MaxValuecette méthode retourne MinValue ou MaxValue, respectivement.
Voir aussi
S’applique à
ConvertTimeToUtc(DateTime, TimeZoneInfo)
- Source:
- TimeZoneInfo.cs
- Source:
- TimeZoneInfo.cs
- Source:
- TimeZoneInfo.cs
Convertit l'heure d'un fuseau horaire spécifié en temps universel coordonné (UTC, Universal Time Coordinated).
public:
static DateTime ConvertTimeToUtc(DateTime dateTime, TimeZoneInfo ^ sourceTimeZone);
public static DateTime ConvertTimeToUtc (DateTime dateTime, TimeZoneInfo sourceTimeZone);
static member ConvertTimeToUtc : DateTime * TimeZoneInfo -> DateTime
Public Shared Function ConvertTimeToUtc (dateTime As DateTime, sourceTimeZone As TimeZoneInfo) As DateTime
Paramètres
- dateTime
- DateTime
Date et heure à convertir.
- sourceTimeZone
- TimeZoneInfo
Fuseau horaire de dateTime
.
Retours
Temps universel coordonné qui correspond au paramètre dateTime
. La propriété DateTime de l'objet Kind a toujours la valeur Utc.
Exceptions
dateTime
.
Kind
est Utc et sourceTimeZone
n’est pas égal à Utc.
- ou -
dateTime
.
Kind
est Local et sourceTimeZone
n’est pas égal à Local.
- ou -
sourceTimeZone
.IsInvalidDateTime(
dateTime
)
retourne true
.
sourceTimeZone
a la valeur null
.
Exemples
L’exemple suivant récupère la date actuelle du système local et la convertit en temps universel coordonné (UTC), puis la convertit en heure standard de Tokyo, puis reconvertit l’heure standard de Tokyo en heure UTC. Notez que les deux heures UTC sont identiques.
using System;
public class Example
{
public static void Main()
{
// Get time in local time zone
DateTime thisTime = DateTime.Now;
Console.WriteLine("Time in {0} zone: {1}", TimeZoneInfo.Local.IsDaylightSavingTime(thisTime) ?
TimeZoneInfo.Local.DaylightName : TimeZoneInfo.Local.StandardName, thisTime);
Console.WriteLine(" UTC Time: {0}", TimeZoneInfo.ConvertTimeToUtc(thisTime, TimeZoneInfo.Local));
// Get Tokyo Standard Time zone
TimeZoneInfo tst = TimeZoneInfo.FindSystemTimeZoneById("Tokyo Standard Time");
DateTime tstTime = TimeZoneInfo.ConvertTime(thisTime, TimeZoneInfo.Local, tst);
Console.WriteLine("Time in {0} zone: {1}", tst.IsDaylightSavingTime(tstTime) ?
tst.DaylightName : tst.StandardName, tstTime);
Console.WriteLine(" UTC Time: {0}", TimeZoneInfo.ConvertTimeToUtc(tstTime, tst));
}
}
// The example displays output like the following when run on a system in the
// U.S. Pacific Standard Time zone:
// Time in Pacific Standard Time zone: 12/6/2013 10:57:51 AM
// UTC Time: 12/6/2013 6:57:51 PM
// Time in Tokyo Standard Time zone: 12/7/2013 3:57:51 AM
// UTC Time: 12/6/2013 6:57:51 PM
open System
// Get time in local time zone
let thisTime = DateTime.Now
printfn $"Time in {if TimeZoneInfo.Local.IsDaylightSavingTime thisTime then TimeZoneInfo.Local.DaylightName else TimeZoneInfo.Local.StandardName} zone: {thisTime}"
printfn $" UTC Time: {TimeZoneInfo.ConvertTimeToUtc(thisTime, TimeZoneInfo.Local)}"
// Get Tokyo Standard Time zone
let tst = TimeZoneInfo.FindSystemTimeZoneById "Tokyo Standard Time"
let tstTime = TimeZoneInfo.ConvertTime(thisTime, TimeZoneInfo.Local, tst)
printfn $"Time in {if tst.IsDaylightSavingTime tstTime then tst.DaylightName else tst.StandardName} zone: {tstTime}"
printfn $" UTC Time: {TimeZoneInfo.ConvertTimeToUtc(tstTime, tst)}"
// The example displays output like the following when run on a system in the
// U.S. Pacific Standard Time zone:
// Time in Pacific Standard Time zone: 12/6/2013 10:57:51 AM
// UTC Time: 12/6/2013 6:57:51 PM
// Time in Tokyo Standard Time zone: 12/7/2013 3:57:51 AM
// UTC Time: 12/6/2013 6:57:51 PM
Module Example
Public Sub Main()
' Get time in local time zone
Dim thisTime As Date = Date.Now
Console.WriteLine("Time in {0} zone: {1}", IIf(TimeZoneInfo.Local.IsDaylightSavingTime(thisTime),
TimeZoneInfo.Local.DaylightName, TimeZoneInfo.Local.StandardName), thisTime)
Console.WriteLine(" UTC Time: {0}", TimeZoneInfo.ConvertTimeToUtc(thisTime, TimeZoneInfo.Local))
' Get Tokyo Standard Time zone
Dim tst As TimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("Tokyo Standard Time")
Dim tstTime As Date = TimeZoneInfo.ConvertTime(thisTime, TimeZoneInfo.Local, tst)
Console.WriteLine("Time in {0} zone: {1}", IIf(tst.IsDaylightSavingTime(tstTime),
tst.DaylightName, tst.StandardName), tstTime)
Console.WriteLine(" UTC Time: {0}", TimeZoneInfo.ConvertTimeToUtc(tstTime, tst))
End Sub
End Module
' The example displays output like the following when run on a system in the U.S.
' Pacific Standard Time zone:
' Time in Pacific Standard Time zone: 12/6/2013 10:57:51 AM
' UTC Time: 12/6/2013 6:57:51 PM
' Time in Tokyo Standard Time zone: 12/7/2013 3:57:51 AM
' UTC Time: 12/6/2013 6:57:51 PM
Remarques
Si la Kind propriété du dateTime
paramètre est égale DateTimeKind.Utc et que le sourceTimeZone
paramètre est égal TimeZoneInfo.Utcà , cette méthode retourne dateTime
sans effectuer de conversion.
Si dateTime
correspond à une heure ambiguë, cette méthode suppose qu’il s’agit de l’heure standard du fuseau horaire source. Si dateTime
correspond à une heure non valide, cette méthode lève un ArgumentException.
Si l’équivalent en temps universel coordonné (UTC) est dateTime
antérieur DateTime.MinValue ou ultérieur à DateTime.MaxValue, cette méthode retourne MinValue ou MaxValue, respectivement.