TimeZone Clase

Definición

Advertencia

Esta API está ya obsoleta.

Representa una zona horaria.Represents a time zone.

public ref class TimeZone abstract
[System.Runtime.InteropServices.ComVisible(true)]
[System.Obsolete("System.TimeZone has been deprecated.  Please investigate the use of System.TimeZoneInfo instead.")]
[System.Serializable]
public abstract class TimeZone
type TimeZone = class
Public MustInherit Class TimeZone
Herencia
TimeZone
Atributos

Ejemplos

En el ejemplo siguiente se hace referencia TimeZone a los elementos de la clase seleccionada y se muestran.The following example references and displays selected TimeZone class elements.

// Example of selected TimeZone class elements.
using namespace System;
using namespace System::Globalization;
int main()
{
   String^ dataFmt = "{0,-30}{1}";
   String^ timeFmt = "{0,-30}{1:yyyy-MM-dd HH:mm}";
   Console::WriteLine( "This example of selected TimeZone class "
   "elements generates the following \n"
   "output, which varies depending on the "
   "time zone in which it is run.\n" );
   
   // Get the local time zone and the current local time and year.
   TimeZone^ localZone = TimeZone::CurrentTimeZone;
   DateTime currentDate = DateTime::Now;
   int currentYear = currentDate.Year;
   
   // Display the names for standard time and daylight saving 
   // time for the local time zone.
   Console::WriteLine( dataFmt, "Standard time name:", localZone->StandardName );
   Console::WriteLine( dataFmt, "Daylight saving time name:", localZone->DaylightName );
   
   // Display the current date and time and show if they occur 
   // in daylight saving time.
   Console::WriteLine( String::Concat( "\n", timeFmt ), "Current date and time:", currentDate );
   Console::WriteLine( dataFmt, "Daylight saving time?", localZone->IsDaylightSavingTime( currentDate ) );
   
   // Get the current Coordinated Universal Time (UTC) and UTC 
   // offset.
   DateTime currentUTC = localZone->ToUniversalTime( currentDate );
   TimeSpan currentOffset = localZone->GetUtcOffset( currentDate );
   Console::WriteLine( timeFmt, "Coordinated Universal Time:", currentUTC );
   Console::WriteLine( dataFmt, "UTC offset:", currentOffset );
   
   // Get the DaylightTime object for the current year.
   DaylightTime^ daylight = localZone->GetDaylightChanges( currentYear );
   
   // Display the daylight saving time range for the current year.
   Console::WriteLine( "\nDaylight saving time for year {0}:", currentYear );
   Console::WriteLine( "{0:yyyy-MM-dd HH:mm} to "
   "{1:yyyy-MM-dd HH:mm}, delta: {2}", daylight->Start, daylight->End, daylight->Delta );
}

/*
This example of selected TimeZone class elements generates the following
output, which varies depending on the time zone in which it is run.

Standard time name:           Pacific Standard Time
Daylight saving time name:    Pacific Daylight Time

Current date and time:        2006-01-06 16:47
Daylight saving time?         False
Coordinated Universal Time:   2006-01-07 00:47
UTC offset:                   -08:00:00

Daylight saving time for year 2006:
2006-04-02 02:00 to 2006-10-29 02:00, delta: 01:00:00
*/
// Example of selected TimeZone class elements.
using System;
using System.Globalization;

class TimeZoneDemo
{
    static void Main( )
    {
        const string dataFmt = "{0,-30}{1}";
        const string timeFmt = "{0,-30}{1:yyyy-MM-dd HH:mm}";

        Console.WriteLine(
            "This example of selected TimeZone class " +
            "elements generates the following \n" +
            "output, which varies depending on the " +
            "time zone in which it is run.\n" );

        // Get the local time zone and the current local time and year.
        TimeZone localZone = TimeZone.CurrentTimeZone;
        DateTime currentDate = DateTime.Now;
        int      currentYear = currentDate.Year;

        // Display the names for standard time and daylight saving 
        // time for the local time zone.
        Console.WriteLine( dataFmt, "Standard time name:", 
            localZone.StandardName );
        Console.WriteLine( dataFmt, "Daylight saving time name:", 
            localZone.DaylightName );

        // Display the current date and time and show if they occur 
        // in daylight saving time.
        Console.WriteLine( "\n" + timeFmt, "Current date and time:",
            currentDate );
        Console.WriteLine( dataFmt, "Daylight saving time?", 
            localZone.IsDaylightSavingTime( currentDate ) );

        // Get the current Coordinated Universal Time (UTC) and UTC 
        // offset.
        DateTime currentUTC = 
            localZone.ToUniversalTime( currentDate );
        TimeSpan currentOffset = 
            localZone.GetUtcOffset( currentDate );

        Console.WriteLine( timeFmt, "Coordinated Universal Time:", 
            currentUTC );
        Console.WriteLine( dataFmt, "UTC offset:", currentOffset );

        // Get the DaylightTime object for the current year.
        DaylightTime daylight = 
            localZone.GetDaylightChanges( currentYear );

        // Display the daylight saving time range for the current year.
        Console.WriteLine( 
            "\nDaylight saving time for year {0}:", currentYear );
        Console.WriteLine( "{0:yyyy-MM-dd HH:mm} to " +
            "{1:yyyy-MM-dd HH:mm}, delta: {2}", 
            daylight.Start, daylight.End, daylight.Delta );
    } 
} 

/*
This example of selected TimeZone class elements generates the following
output, which varies depending on the time zone in which it is run.

Standard time name:           Pacific Standard Time
Daylight saving time name:    Pacific Daylight Time

Current date and time:        2006-01-06 16:47
Daylight saving time?         False
Coordinated Universal Time:   2006-01-07 00:47
UTC offset:                   -08:00:00

Daylight saving time for year 2006:
2006-04-02 02:00 to 2006-10-29 02:00, delta: 01:00:00
*/ 
' Example of selected TimeZone class elements.
Imports System.Globalization

Module TimeZoneDemo

    Sub Main( )

        Const dataFmt As String = "{0,-30}{1}"
        Const timeFmt As String = "{0,-30}{1:yyyy-MM-dd HH:mm}"

        Console.WriteLine( "This example of selected " & _
            "TimeZone class elements generates the following " & _
            vbCrLf & "output, which varies depending on the " & _
            "time zone in which it is run." & vbCrLf )

        ' Get the local time zone and the current local time and year.
        Dim localZone As TimeZone = TimeZone.CurrentTimeZone
        Dim currentDate As DateTime = DateTime.Now
        Dim currentYear As Integer = currentDate.Year

        ' Display the names for standard time and daylight saving 
        ' time for the local time zone.
        Console.WriteLine( dataFmt, "Standard time name:", _
            localZone.StandardName )
        Console.WriteLine( dataFmt, "Daylight saving time name:", _
            localZone.DaylightName )

        ' Display the current date and time and show if they occur 
        ' in daylight saving time.
        Console.WriteLine( vbCrLf & timeFmt, _
            "Current date and time:", currentDate )
        Console.WriteLine( dataFmt, "Daylight saving time?", _
            localZone.IsDaylightSavingTime( currentDate ) )

        ' Get the current Coordinated Universal Time (UTC) and UTC 
        ' offset.
        Dim currentUTC As DateTime = _
            localZone.ToUniversalTime( currentDate )
        Dim currentOffset As TimeSpan = _
            localZone.GetUtcOffset( currentDate )

        Console.WriteLine( timeFmt, "Coordinated Universal Time:", _
            currentUTC )
        Console.WriteLine( dataFmt, "UTC offset:", currentOffset )

        ' Get the DaylightTime object for the current year.
        Dim daylight As DaylightTime = _
            localZone.GetDaylightChanges( currentYear )

        ' Display the daylight saving time range for the current year.
        Console.WriteLine( vbCrLf & _
            "Daylight saving time for year {0}:", currentYear )
        Console.WriteLine( "{0:yyyy-MM-dd HH:mm} to " & _
            "{1:yyyy-MM-dd HH:mm}, delta: {2}", _
            daylight.Start, daylight.End, daylight.Delta )
    End Sub 
End Module 

'This example of selected TimeZone class elements generates the following
'output, which varies depending on the time zone in which it is run.
'
'Standard time name:           Pacific Standard Time
'Daylight saving time name:    Pacific Daylight Time
'
'Current date and time:        2006-01-06 16:47
'Daylight saving time?         False
'Coordinated Universal Time:   2006-01-07 00:47
'UTC offset:                   -08:00:00
'
'Daylight saving time for year 2006:
'2006-04-02 02:00 to 2006-10-29 02:00, delta: 01:00:00

Comentarios

Una zona horaria es una región geográfica en la que se usa la misma hora estándar.A time zone is a geographical region in which the same standard time is used.

Importante

Siempre que sea posible, TimeZoneInfo utilice la clase en lugar TimeZone de la clase.Whenever possible, use the TimeZoneInfo class instead of the TimeZone class.

Puede utilizar la TimeZone clase para recuperar información acerca de la zona horaria actual y convertir las horas de la hora local a la hora universal coordinada (UTC), o viceversa.You can use the TimeZone class to retrieve information about the current time zone, and to convert times from local time to Coordinated Universal Time (UTC) or vice versa. Sin embargo, no puede utilizar TimeZone la clase para representar las zonas horarias que no sean la zona local o para controlar las conversiones de fecha y hora de una zona horaria a otra.However, you cannot use the TimeZone class to represent time zones other than the local zone or to handle date and time conversions from one time zone to another. Para este propósito, use la TimeZoneInfo clase.For this purpose, use the TimeZoneInfo class. Puede usar esta clase para recuperar información en cualquier zona horaria definida en el sistema local, crear zonas horarias personalizadas y convertir las horas de una zona horaria a otra.You can use this class to retrieve information on any time zone defined on the local system, to create custom time zones, and to convert times from one time zone to another.

La TimeZone clase solo admite una regla de ajuste del horario de verano para la zona horaria local.The TimeZone class supports only a single daylight saving time adjustment rule for the local time zone. Como resultado, la TimeZone clase puede notificar con precisión la información del horario de verano o convertir entre la hora UTC y la hora local solo para el período en el que la regla de ajuste más reciente está en vigor.As a result, the TimeZone class can accurately report daylight saving time information or convert between UTC and local time only for the period in which the latest adjustment rule is in effect. En cambio, la TimeZoneInfo clase admite varias reglas de ajuste, lo que permite trabajar con datos históricos de zona horaria.In contrast, the TimeZoneInfo class supports multiple adjustment rules, which makes it possible to work with historic time zone data.

Notas a los desarrolladores de herederos

Además de abstract proporcionar implementaciones para sus miembros (los marcados MustOverride en Visual Basic), es importante que las clases derivadas de TimeZone reemplacen el comportamiento predeterminado ToLocalTime(DateTime) del método.In addition to providing implementations for its abstract members (those marked MustOverride in Visual Basic), it is important that classes derived from TimeZone override the default behavior of the ToLocalTime(DateTime) method. Esto se debe a que el comportamiento ToLocalTime(DateTime) predeterminado de en la .NET Framework versión 2,0 no depende de una llamada GetUtcOffset(DateTime)a, como ocurría en las versiones de .NET Framework 1,0 y 1,1.This is because the default behavior of ToLocalTime(DateTime) in the .NET Framework version 2.0 does not depend on a call to GetUtcOffset(DateTime), as it did in the .NET Framework versions 1.0 and 1.1. Para obtener más información, ToLocalTime(DateTime) vea el método.For details, see the ToLocalTime(DateTime) method.

Constructores

TimeZone()

Inicializa una nueva instancia de la clase TimeZone.Initializes a new instance of the TimeZone class.

Propiedades

CurrentTimeZone

Obtiene la zona horaria del equipo actual.Gets the time zone of the current computer.

DaylightName

Obtiene el nombre de la zona de horario de verano.Gets the daylight saving time zone name.

StandardName

Obtiene el nombre estándar de la zona horaria.Gets the standard time zone name.

Métodos

Equals(Object)

Determina si el objeto especificado es igual al objeto actual.Determines whether the specified object is equal to the current object.

(Heredado de Object)
GetDaylightChanges(Int32)

Devuelve el período de horario de verano de un año determinado.Returns the daylight saving time period for a particular year.

GetHashCode()

Sirve como la función hash predeterminada.Serves as the default hash function.

(Heredado de Object)
GetType()

Obtiene el Type de la instancia actual.Gets the Type of the current instance.

(Heredado de Object)
GetUtcOffset(DateTime)

Devuelve el desplazamiento de la hora universal coordinada (UTC) con respecto a la hora local especificada.Returns the Coordinated Universal Time (UTC) offset for the specified local time.

IsDaylightSavingTime(DateTime)

Devuelve un valor que indica si la fecha y hora especificadas se encuentran dentro del período de horario de verano.Returns a value indicating whether the specified date and time is within a daylight saving time period.

IsDaylightSavingTime(DateTime, DaylightTime)

Devuelve un valor que indica si la fecha y hora especificadas se encuentran dentro del período de horario de verano especificado.Returns a value indicating whether the specified date and time is within the specified daylight saving time period.

MemberwiseClone()

Crea una copia superficial del objeto Object actual.Creates a shallow copy of the current Object.

(Heredado de Object)
ToLocalTime(DateTime)

Devuelve la hora local correspondiente a un valor especificado de fecha y hora.Returns the local time that corresponds to a specified date and time value.

ToString()

Devuelve una cadena que representa el objeto actual.Returns a string that represents the current object.

(Heredado de Object)
ToUniversalTime(DateTime)

Devuelve la hora universal coordinada (UTC) correspondiente a una hora local especificada.Returns the Coordinated Universal Time (UTC) that corresponds to a specified time.

Se aplica a

Consulte también: