Wolfram Language & System 10.4 (2016)|Legacy Documentation

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is an option for DateObject, DateString, and related functions that specifies the time zone to use for dates and times.


  • TimeZone->z specifies that results should be returned for a time zone in which z hours must be added to Greenwich Mean Time (GMT) to obtain local time.
  • specifies that results should be returned using the appropriate offset for the time zone on the appropriate date.
  • The typical default setting is TimeZone:>$TimeZone.
  • US Eastern Standard Time (EST) corresponds to time zone .
  • For numeric values, daylight saving time corrections must be included in the time zone, so US Eastern Daylight Time (EDT) corresponds to time zone .
  • Example time zone strings include , , , and .
  • Settings for TimeZone should be an Integer, Real, or time zone String.
  • A list of available time zone entities can be found using EntityList["TimeZone"].
Introduced in 1991
| Updated in 2015