(Administration>General>Date & Time>daylight saving)Enable either traditional United States Daylight Saving Time (DST) or enable and
configure a customized daylight saving time to match how Daylight Saving Time is
implemented in your local area. DST is disabled by default.
When customizing Daylight Saving Time (DST):
• If the local DST always starts or ends on the fourth occurrence of a specific weekday
of a month (for example, the fourth Sunday), choose Fourth/Last. If a fifth Sunday
occurs in that month in a subsequent year, the time setting still changes on the fourth
• If the local DST always starts or ends on the last occurrence of a specific weekday of
a month, whether it is the fourth or the fifth occurrence, choose Fifth/Last.