Gets the localized display name for the current time zone's daylight saving time.
Assembly: mscorlib (in mscorlib.dll)
A property whose value is not String.Empty or null does not necessarily indicate that the time zone supports daylight saving time. To determine whether the time zone supports daylight saving time, check the value of its SupportsDaylightSavingTime property.
In most cases, the property of time zones defined in the registry is not String.Empty or null. However, the property of custom time zones can be set to String.Empty. This occurs when custom time zones are created by the TimeZoneInfo.CreateCustomTimeZone(String, TimeSpan, String, String) or the TimeZoneInfo.CreateCustomTimeZone(String, TimeSpan, String, String, String, TimeZoneInfo.AdjustmentRule, Boolean) overload and the disableDaylightSavingTime parameter is true. Therefore, your code should never assume that the value of the property is not null or empty.
The following example defines a method named DisplayDateWithTimeZoneName that uses the IsDaylightSavingTime(DateTime) method to determine whether to display a time zone's standard time name or daylight saving time name.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2