TimeZone

TimeZone

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

Details

  • The TimeZone option is typically used to specify the time zone associated with a given date or collection of dates.
  • Possible TimeZone specifications include:
  • nnumber of hours added to GMT
    "zone"named time zone
    Entity["TimeZone", "zone"]time zone specified by the "TimeZone" entity
    loctime zone associated with the given location
    Automaticautomatically determine the time zone
    Nonespecify no time zone information
  • For numeric values of n, TimeZone->n specifies that results should be returned for a time zone in which n hours must be added to Greenwich Mean Time (GMT) to obtain local time.
  • TimeZone->"zone" specifies that results should be returned using the appropriate offset for the named time zone "zone" on the appropriate date.
  • Example time zone strings include "America/Chicago", "Europe/London", "Asia/Tokyo", "Zulu", "-04:00", "GMT+05:45", etc.
  • A list of available time zone entities can be found using EntityList["TimeZone"].
  • TimeZoneloc will use the time zone associated with the specified location Entity or GeoPosition loc.
  • TimeZoneAutomatic indicates that the time zone value should be determined automatically, defaulting to $TimeZone if no time zone information is otherwise available.
  • TimeZoneNone indicates that no explicit time zone information should be inserted, defaulting to $TimeZone in cases where time zone offset instantiation is necessary.
  • The typical default setting is TimeZone:>$TimeZone.

Examples

open allclose all

Basic Examples  (2)

Return the current date and time in the GMT time zone:

Return the current date and time in time zones with offsets of 0 to 6 hours:

Scope  (4)

TimeZone values can be an Integer, Real, or time zone String:

Time zone strings will account for daylight saving time automatically:

EntityList["TimeZone"] can be used to find available "TimeZone" entities:

Main time zones in United States:

Neat Examples  (1)

Find the time zones in the United States:

Plot only the contiguous US:

Wolfram Research (1991), TimeZone, Wolfram Language function, https://reference.wolfram.com/language/ref/TimeZone.html (updated 2024).

Text

Wolfram Research (1991), TimeZone, Wolfram Language function, https://reference.wolfram.com/language/ref/TimeZone.html (updated 2024).

CMS

Wolfram Language. 1991. "TimeZone." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2024. https://reference.wolfram.com/language/ref/TimeZone.html.

APA

Wolfram Language. (1991). TimeZone. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/TimeZone.html

BibTeX

@misc{reference.wolfram_2025_timezone, author="Wolfram Research", title="{TimeZone}", year="2024", howpublished="\url{https://reference.wolfram.com/language/ref/TimeZone.html}", note=[Accessed: 05-July-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_timezone, organization={Wolfram Research}, title={TimeZone}, year={2024}, url={https://reference.wolfram.com/language/ref/TimeZone.html}, note=[Accessed: 05-July-2025 ]}