TimeZoneInfo.ConvertTimeFromUtc(DateTime, TimeZoneInfo) Método

Definição

Namespace:
System
Assemblies:
mscorlib.dll, System.Runtime.dll
Assembly:
System.Runtime.dll
Assembly:
System.Core.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Converte um UTC (Tempo Universal Coordenado) no horário em um fuso horário especificado.Converts a Coordinated Universal Time (UTC) to the time in a specified time zone.

public:
 static DateTime ConvertTimeFromUtc(DateTime dateTime, TimeZoneInfo ^ destinationTimeZone);
public static DateTime ConvertTimeFromUtc (DateTime dateTime, TimeZoneInfo destinationTimeZone);
static member ConvertTimeFromUtc : DateTime * TimeZoneInfo -> DateTime
Public Shared Function ConvertTimeFromUtc (dateTime As DateTime, destinationTimeZone As TimeZoneInfo) As DateTime

Parâmetros

dateTime
DateTime

UTC (Tempo Universal Coordenado).The Coordinated Universal Time (UTC).

destinationTimeZone
TimeZoneInfo

O fuso horário no qual dateTime deve ser convertido.The time zone to convert dateTime to.

Retornos

DateTime

A data e hora no fuso horário de destino.The date and time in the destination time zone. A propriedade Kind será Utc se destinationTimeZone for Utc; caso contrário, a propriedade Kind será Unspecified.Its Kind property is Utc if destinationTimeZone is Utc; otherwise, its Kind property is Unspecified.

Exceções

ArgumentException

A propriedade Kind de dateTime é Local.The Kind property of dateTime is Local.

ArgumentNullException

destinationTimeZone é null.destinationTimeZone is null.

Exemplos

O exemplo a seguir converte o tempo universal coordenado (UTC) para o horário central.The following example converts Coordinated Universal Time (UTC) to Central Time.

DateTime timeUtc = DateTime.UtcNow;
try
{
   TimeZoneInfo cstZone = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time");
   DateTime cstTime = TimeZoneInfo.ConvertTimeFromUtc(timeUtc, cstZone);
   Console.WriteLine("The date and time are {0} {1}.", 
                     cstTime, 
                     cstZone.IsDaylightSavingTime(cstTime) ?
                             cstZone.DaylightName : cstZone.StandardName);
}
catch (TimeZoneNotFoundException)
{
   Console.WriteLine("The registry does not define the Central Standard Time zone.");
}                           
catch (InvalidTimeZoneException)
{
   Console.WriteLine("Registry data on the Central Standard Time zone has been corrupted.");
}

Dim timeUtc As Date = Date.UtcNow
Try
   Dim cstZone As TimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time")
   Dim cstTime As Date = TimeZoneInfo.ConvertTimeFromUtc(timeUtc, cstZone)
   Console.WriteLine("The date and time are {0} {1}.", _
                     cstTime, _
                     IIf(cstZone.IsDaylightSavingTime(cstTime), _
                         cstZone.DaylightName, cstZone.StandardName))
Catch e As TimeZoneNotFoundException
   Console.WriteLine("The registry does not define the Central Standard Time zone.")
Catch e As InvalidTimeZoneException
   Console.WriteLine("Registry data on the Central Standard Time zone has been corrupted.")
End Try

Comentários

Ao executar a conversão, o ConvertTimeFromUtc método aplica quaisquer regras de ajuste em vigor no destinationTimeZone fuso horário.When performing the conversion, the ConvertTimeFromUtc method applies any adjustment rules in effect in the destinationTimeZone time zone.

O comportamento preciso desse método depende do valor da Kind Propriedade do dateTime parâmetro, como mostra a tabela a seguir.The precise behavior of this method depends on the value of the Kind property of the dateTime parameter, as the following table shows.

Propriedade DateTime.KindDateTime.Kind property ConversãoConversion
DateTimeKind.Local Lança um ArgumentException.Throws an ArgumentException.
DateTimeKind.Unspecified ou DateTimeKind.UtcDateTimeKind.Unspecified or DateTimeKind.Utc Converte do UTC (tempo Universal Coordenado).Converts from Coordinated Universal Time (UTC).

Caso a conversão de dateTime resulte em uma data e um valor de hora anterior a DateTime.MinValue ou posterior a DateTime.MaxValue, este método retorna DateTime.MinValue ou DateTime.MaxValue, respectivamente.If the conversion of dateTime results in a date and time value that is earlier than DateTime.MinValue or later than DateTime.MaxValue, this method returns DateTime.MinValue or DateTime.MaxValue, respectively.

Aplica-se a

Confira também