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How do you refer to time zones?
Reference to a specific time and zone would follow standard guidelines with the zone in parentheses: 4:42 p.m. (PST), 11:03 a.m. (MDT), 2:30 p.m. (CST), 10:00 P.M. (EST). AP on the other hand advises to capitalize the full name of each time zone: Pacific/Mountain/Central/Eastern Standard Time.
How are timezones laid out?
The Earth is loosely divided into 24 regions (time zones) separated by longitude. Not counting local variations, each line of longitude is divided by fifteen degrees; as a general rule and depending upon which way one travels, time moves forward or backward one hour for every fifteen degrees of longitude.
