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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]
As of 2018, daylight saving time (DST) is permanently observed in Morocco. Previously, time was advanced to UTC+01:00 at 02:00 on the last Sunday of March, and reverted to UTC+00:00 (standard time), defined as Greenwich Mean Time locally, at 03:00 on the last Sunday of October. This practice was continued until October 2018, after which clocks ...
Canada and the United States use daylight saving time on a wide scale, with only a few provinces/states, or parts of them, opting out of the practice or adopting it year-round without a twice-yearly switch. The Canadian province of Saskatchewan and the territory of Yukon do not observe daylight saving time. Saskatchewan remains on Central ...
Canada: Yes: Yes: Yes: ISO 8601 is the only format that the Government of Canada and Standards Council of Canada officially recommend for all-numeric dates. [30] [31] [32] However, usage differs with context. [33] [34] All three long forms are used in Canada.
Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...
Places in Pacific Time that have not observed DST since the database cut-off date (1970) 6446092 on OpenStreetMap: CA +5546−12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John) −07:00: −07:00: Places in Mountain Time that stopped using DST in 1973 6483979 on OpenStreetMap: CA +5848−12242 America/Fort_Nelson MST - BC (Ft Nelson ...
Before the wide adoption of standard time zones, local mean time was widely used in railway time for train timetables and telegraphic time for telegraphy. [7] Local mean time is a solar time that corrects the variations of local apparent time by forming a uniform time scale at a specific longitude ; [ 8 ] for instance, Liberia observed UTC−0: ...
The Eastern Time Zone (ET) is a time zone encompassing part or all of 23 states in the eastern part of the United States, parts of eastern Canada, and the state of Quintana Roo in Mexico. Eastern Standard Time ( EST ) is five hours behind Coordinated Universal Time ( UTC−05:00 ).