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time zone

noun
1.
one of the 24 regions or divisions of the globe approximately coinciding with meridians at successive hours from the observatory at Greenwich, England.
Origin of time zone
1880-1885
1880-85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for time zone
Contemporary Examples
Historical Examples
  • With a professional eye Mrs. Mimms noted the drawn mouths, the tense expressions typical of the time zone and shook her head.

    The Amazing Mrs. Mimms David C. Knight
  • All that might-have-been talent that's lost in every time zone!

    The Amazing Mrs. Mimms David C. Knight
  • You were suddenly transferred to another time zone and there was no one to carry on.

    The Amazing Mrs. Mimms David C. Knight
British Dictionary definitions for time zone

time zone

noun
1.
a region throughout which the same standard time is used. There are 24 time zones in the world, demarcated approximately by meridians at 15° intervals, an hour apart See also zonetime
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for time zone
n.

attested by 1885.

Previous to 1883 the methods of measuring time in the United States were so varied and so numerous as to be ludicrous. There were 50 different standards used in the United States, and on one road between New York and Boston, whose actual difference is 12 minutes, there were three distinct standards of time. Even small towns had two different standards one known as "town" or local time and the other "railroad" time.

... At noon on November 18, 1883, there was a general resetting of watches and clocks all over the United States and Canada, and the four great time zones, one hour apart, into which the country was divided came into being. So smoothly did the plan work that the general readjustment was accomplished without great difficulty and it has worked satisfactorily ever since. ["Railroad Trainman," 1909]

Online Etymology Dictionary, © 2010 Douglas Harper
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time zone in Science
time zone  
Any of the 24 divisions of the Earth's surface used to determine the local time for any given locality. Each zone is roughly 15° of longitude in width, with local variations for economic and political convenience. Local time is one hour ahead for each time zone as one travels east and one hour behind for each time zone as one travels west. The International Meridian Conference in 1884 established the prime meridian as the starting point for the 24 zones. See more at International Date Line, standard time.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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time zone in Technology


One of approximately 24 longitudinal divisions of the globe, nominally 15 degrees wide, in which clocks show the same time. Some zones follow the boundaries of states or territories, others differ from neighbouring zones by more or less than one hour.
Computers can be programmed to take into account the time zone each user is working in, which is not necessarily the same as the zone the computer is in.
See also TZ.
(1997-07-20)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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6
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