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The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2025a of the tz database. [2]
If present, a dagger (†) indicates the usage of a nautical time zone letter outside of the standard geographic definition of that time zone. Some zones that are north/south of each other in the mid-Pacific differ by 24 hours in time – they have the same time of day but dates that are one day apart. The two extreme time zones on Earth (both ...
The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.
[15] Sierra Leone: 1962: Observed DST in 1935–1942 and 1957–1962. Singapore: 1935: Observed DST in 1933–1935 by adding 20 minutes to standard time. On January 1, 1936, country changed their time zone to UTC+07:20. [16] Slovakia
Adjust your calendar's time zone for your current location to keep your events' times accurate. 1. In AOL Mail, click the Calendar icon 2. Click Calendar full view. 3. Click Settings icon | select Calendar Options. 4. Select your time zone from the Time Zone drop-down menu under General. 5.
As an ideal form of the terrestrial time zone system, nautical time zones consist of gores of 15° offset from GMT by a whole number of hours. A nautical date line follows the 180th meridian, bisecting one 15° gore into two 7.5° gores that differ from GMT by ±12 hours. [30] [31] [32]
August 15 is the 227th day of ... [15] 2021 – Kabul falls into the hands ... celebrates the independence of India from the United Kingdom in 1947. Independence Day, ...
It is ultimately the authority of the secretary of transportation, in coordination with the states, to determine which regions will observe which of the standard time zones and if they will observe daylight saving time. [7] As of August 9, 2007, the standard time zones are defined in terms of hourly offsets from UTC. [8]