A time zone is one of the areas into which the world is divided where the time is calculated as being a particular number of hours behind or ahead of GMT.
time zone in British English
noun
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
time zone in American English
US
any of the 24 longitudinal regions of the earth, each occupying 15 degrees and having a mean solar time one hour greater than that of the neighboring region to the west
Examples of 'time zone' in a sentence
time zone
Having homes in all the right time zones is no longer enough.
Times, Sunday Times (2006)
People who often cross many time zones can experience brain damage and memory problems.
Times, Sunday Times (2008)
How many time zones are you crossing?
Mayes, Kathleen Beat Jet Lag - arrive alert and stay alert (1991)
We need to examine the possibility of reducing the number of time zones.
Times, Sunday Times (2009)
You regularly spend just a few short hours in one time zone before you fly off on the next business trip.
Times, Sunday Times (2013)
Time zone factors How many zones are you crossing?
Mayes, Kathleen Beat Jet Lag - arrive alert and stay alert (1991)
Another style features "universal time", showing the time in other cities and time zones around the world.
Mayes, Kathleen Beat Jet Lag - arrive alert and stay alert (1991)
After just a few days we have crossed so many time zones that I have lost all sense of day and night.
Times, Sunday Times (2010)
In other languages
time zone
British English: time zone /taɪm zəʊn/ NOUN
A time zone is one of the areas into which the world is divided where the time is calculated as being a particular number of hours behind or ahead of GMT.