Editing Time zone

{{Short description|Region using a standard local time}}

A '''time zone''' is a geographic or administrative area that uses the same standard time. Time zones are used so that clocks in different regions can reflect local daylight, civil administration, transport schedules, communication, and record keeping.

Most time zones are defined as offsets from [[Coordinated Universal Time]] (UTC). An offset shows how many hours and minutes a local time is ahead of or behind UTC, such as UTC+1, UTC−5, or UTC+9.

== Overview ==

Time zones allow different parts of the world to use local time while still remaining connected to a shared global standard. A country may use one time zone or several time zones depending on its size, geography, and administrative needs.

Time zones are important for government records, travel, broadcasting, computing, military coordination, trade, and international communication. They help prevent confusion when events involve more than one region.

== Relationship with UTC ==

[[Coordinated Universal Time]] is the main reference point for time zones. Local time is usually written as an offset from UTC. For example, a region using UTC+2 is two hours ahead of UTC, while a region using UTC−4 is four hours behind UTC.

Using UTC as a reference makes it easier to compare times between different places. It is also useful for technical systems, transport records, and international schedules.

== Daylight saving time ==

Some regions use [[daylight saving time]], which changes the local clock during part of the year. This usually moves the clock forward by one hour and later returns it to standard time.

Not all countries use daylight saving time. In places where it is used, the start and end dates may differ by country or region.

== Use on the wiki ==

Pages may use local time when a place, event, or official record is tied to a specific region. UTC may be used when a neutral global reference is needed, especially for events involving several countries or technical records.

When a local time is important, it may be written together with its UTC offset to avoid ambiguity.

== See also ==

* [[Coordinated Universal Time]]
* [[Greenwich Mean Time]]
* [[Daylight saving time]]
* [[Calendar]]
* [[Europe]]