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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.
From east to west, the four time zones of the contiguous United States are: Eastern Time Zone (Zone R), which comprises roughly the states on the Atlantic coast and the eastern two thirds of the Ohio Valley. Central Time Zone (Zone S), which comprises roughly the Gulf Coast, Mississippi Valley, and most of the Great Plains.
Because primetime programs on the East Coast feed are simulcast in two time zones, stations in the Central Time Zone are affected differently from those in the Eastern Time Zone. An hour of syndicated programming time (between 7:00 and 8:00 p.m. in the Eastern and Pacific time zones) is lost in the Central and Mountain time zones since network ...
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]
President Donald Trump reportedly has to be reminded of differences in time zones on a "constant basis" as he impulsively attempts to call other world leaders, a diplomatic source told Politico.
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 ...
On Nov. 18, 1883, Americans adopted four standardized time zones, replacing a confusing, dangerous hodgepodge of times.
World map of current time zones. A time zone is a geographical region in which residents observe the same standard time.Although nominally a new time zone is established every 15 degrees east or west of the prime meridian (meaning a one-hour change in the time), in practice local geographical or political considerations may vary its application.