A time offset is defined by international convention as a number of hours and minutes from Coordinated Universal Time in Greenwich, England. Many time zones employ two time offsets, one for standard time and one for summer (see Daylight saving).

Here is a table of time offsets for the United States of America:

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Note that many parts of the U.S. do not observe summer time.

Links

• Time Service Dept., U.S. Naval Observatory

Time zones

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