TimeZone::CurrentTimeZone Property
Updated: September 2011
Gets the time zone of the current computer.
Assembly: mscorlib (in mscorlib.dll)
The CurrentTimeZone property corresponds to the TimeZoneInfo::Local property. Whenever possible, use the TimeZoneInfo::Local property.
Notes to CallersLocal time zone data is cached after CurrentTimeZone is first used to retrieve time zone information. If the system's local time zone subsequently changes, the CurrentTimeZone property does not reflect this change. If you need to handle time zone changes while your application is running, use the TimeZoneInfo class and call its TimeZoneInfo::ClearCachedData method.
The following example references the CurrentTimeZone property and displays the names for standard time and daylight saving time for the local time zone.
// 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 */
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.