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World Time Zones and Time Zone Map

Source: National Institute of Standards and Technology Physics Laboratory Time zones did not become necessary in the United States until trains made it possible to travel hundreds of miles in…

Time Zone Conversion

The Question: Where could I find information about time zones and what time it would be anywhere else in the world? The Answer: Right here! We'…

Time Zone Origins

A transcontinental train schedule was the mother of invention Map of world time zones – full size Related Links Time Measurement, Time Zones, and the International Date Line Prime…

time zone

(Encyclopedia) time zone: see standard time.

How Big is a Time Zone?

The Question: How far apart are each of the time zones? The Answer: The answer to your question depends on where you are. The world's time zones were created by…

World Time Zones Map

        Related Links Daylight Saving Time Facts Geography Guide Country Profiles World Atlas U.S. Maps and Information  

civil time

(Encyclopedia) civil time, local time based on universal time. Civil time may be formally defined as mean solar time plus 12 hr; the civil day begins at midnight, while the mean solar day begins at…

standard time

(Encyclopedia) standard time, civil time used within a given time zone. The earth is divided into 24 time zones, each of which is about 15° of longitude wide and corresponds to one hour of time.…