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This is a list of the UTC time offsets, showing the difference in hours and minutes from Coordinated Universal Time (UTC), from the westernmost (−12:00) to the easternmost (+14:00). It includes countries and regions that observe them during standard time or year-round.
The UTC offsets are based on the current or upcoming database rules. This table does not attempt to document any of the historical data which resides in the database. In Ireland , what Irish law designates as "standard time" is observed during the summer, with clocks turned one hour ahead of UTC.
Western half of state: UTC−07:00 MST Mountain Standard Time Tennessee: UTC−05:00 ET Yes East Tennessee, except Bledsoe, Cumberland, and Marion Counties: UTC−05:00 EST Eastern Standard Time UTC−06:00 CT Most of state: UTC−06:00 CST Central Standard Time Texas: UTC−06:00 CT Yes Most of state: UTC−06:00 CST Central Standard Time UTC ...
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 ...
Time zones of the world. A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
UTC is, within about 1 second, mean solar time at 0°. [6] UTC does not observe daylight saving time. For most purposes, UTC is considered interchangeable with GMT, but GMT is no longer precisely defined by the scientific community. UTC is one of several closely related successors to GMT.
The UTC offset is the difference in hours and minutes between Coordinated Universal Time (UTC) and the standard time at a particular place. [1] This difference is expressed with respect to UTC and is generally shown in the format ±[hh]:[mm] , ±[hh][mm] , or ±[hh] .
UTC−06:00 – Central Time zone: a large area spanning from the Gulf Coast to the Great Lakes UTC−05:00 – Eastern Time zone: roughly a triangle covering all the states from the Great Lakes down to Florida and east to the Atlantic coast UTC−04:00 – Puerto Rico, the U.S. Virgin Islands