Gets a value indicating whether the time zone has any daylight saving time rules.
using System;
using System.Collections.ObjectModel;
publicclass Example
{
publicstaticvoid Main()
{
ReadOnlyCollection<TimeZoneInfo> zones = TimeZoneInfo.GetSystemTimeZones();
foreach(TimeZoneInfo zone in zones)
{
if (! zone.SupportsDaylightSavingTime)
Console.WriteLine(zone.DisplayName);
}
}
}