List of UTC Time Offsets

List Of UTC Time Offsets

This is a list of time offsets from Coordinated Universal Time (UTC), along with the countries and regions that observe them. Places that observe daylight saving time (DST) during their respective summer periods are listed only once, at the offset for their winter period—see their individual articles for more information. A source for detailed DST and historical information is the tz database. Note that there are many instances of unofficial observation of a different offset (and/or DST) than expected by areas close to borders, usually for economic reasons.

The letter after the offset is that used in nautical time. The dagger symbol (†) indicates the usage of a nautical time zone letter outside of the standard geographic definition of that time zone.

Time zone abbreviations are almost always customary, not legal, and meant to be unique only within a defined area (like the U.S.), not globally.

Some locations use GMT (Greenwich Mean Time) instead of UTC (Coordinated Universal Time) in their definition of local time. For the purposes of this summary, this distinction is ignored.

Some zones north-south of each other in the mid Pacific differ by 24 hours in time: they have the same time of day but differ by a full day. The two extreme time zones on Earth (both in the mid Pacific) differ by 26 hours.

Note that only the right-most indent of a group of locations is meant to indicate the area observing the offset – the places above and to the left are meant solely to indicate the area's parent administrative divisions. For example:

• Australia
  • Western Australia
    • Eucla

means Eucla observes the specified time offset. The state (Western Australia) and country (Australia) are shown only for reference, and are not meant to be wholly included.

The main purpose of this page is to list the standard time offsets of different countries, territories and regions. Information on daylight saving time or historical changes in offsets should be placed in the individual offset articles (e.g. UTC+01:00), or the country-specific time articles (e.g. Time in Russia).

The purpose of the 'principal cities' list at the top of the time zone is to give a brief list of major cities. These should be limited to a maximum of one city per country (within each zone), and not all countries in a zone need to have a city listed. Similarly, time zones need not have any cities listed if there are no major cities in that offset.