TimeZone.DaylightName 属性
获取夏时制时区名称。
**命名空间:**System
**程序集:**mscorlib（在 mscorlib.dll 中）
语法
声明
Public MustOverride ReadOnly Property DaylightName As String
用法
Dim instance As TimeZone
Dim value As String
value = instance.DaylightName
public abstract string DaylightName { get; }
public:
virtual property String^ DaylightName {
String^ get () abstract;
}
/** @property */
public abstract String get_DaylightName ()
public abstract function get DaylightName () : String
属性值
夏时制时区名称。
备注
如果时区中没有使用夏时制，则返回空字符串 ("")。
示例
下面的代码示例引用并显示当前时区的 DaylightName 属性。
' Example of selected TimeZone class elements.
Imports System
Imports System.Globalization
Imports Microsoft.VisualBasic
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 Standard Time
'
' Current date and time: 2003-05-05 12:38
' Daylight saving time? True
' Coordinated Universal Time: 2003-05-05 19:38
' UTC offset: -07:00:00
'
' Daylight saving time for year 2003:
' 2003-04-06 02:00 to 2003-10-26 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 Standard Time
Current date and time: 2003-05-08 11:10
Daylight saving time? True
Coordinated Universal Time: 2003-05-08 18:10
UTC offset: -07:00:00
Daylight saving time for year 2003:
2003-04-06 02:00 to 2003-10-26 02:00, delta: 01:00:00
*/
// 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 Standard Time
Current date and time: 2003-05-08 11:11
Daylight saving time? True
Coordinated Universal Time: 2003-05-08 18:11
UTC offset: -07:00:00
Daylight saving time for year 2003:
2003-04-06 02:00 to 2003-10-26 02:00, delta: 01:00:00
*/
// Example of selected TimeZone class elements.
import System.*;
import System.Globalization.*;
class TimeZoneDemo
{
public static void main(String[] args)
{
final String dataFmt = "{0,-30}{1}";
final 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.get_CurrentTimeZone();
DateTime currentDate = DateTime.get_Now();
int currentYear = currentDate.get_Year();
// Display the names for standard time and daylight saving
// time for the local time zone.
Console.WriteLine(dataFmt, "Standard time name:",
localZone.get_StandardName());
Console.WriteLine(dataFmt, "Daylight saving time name:",
localZone.get_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?",
String.valueOf(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}:",
String.valueOf(currentYear));
Console.WriteLine("{0:yyyy-MM-dd HH:mm} to " +
"{1:yyyy-MM-dd HH:mm},delta: {2}",
daylight.get_Start(), daylight.get_End(),
daylight.get_Delta());
} //main
} //TimeZoneDemo
/*
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 Standard Time
Current date and time: 2003-05-08 11:10
Daylight saving time? True
Coordinated Universal Time: 2003-05-08 18:10
UTC offset: -07:00:00
Daylight saving time for year 2003:
2003-04-06 02:00 to 2003-10-26 02:00, delta: 01:00:00
*/
平台
Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition
.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。
版本信息
.NET Framework
受以下版本支持：2.0、1.1、1.0
.NET Compact Framework
受以下版本支持：2.0、1.0