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Created Oct 3, 2013
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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}";
"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;
// 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 );
for (int i = 0; i < 100; i++) {
int currentYear = 1930+i;
// Get the DaylightTime object for the current year.
DaylightTime daylight =
localZone.GetDaylightChanges( currentYear );
// Display the daylight saving time range for the current year.
"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 );
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