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zone



Arctic zone
Demilitarized Zone (Korea)
Special Economic Zone (SEZ)

Lowercase:
temperate zone
north temperate zone
south temperate zone
central time zone
no-fly zone



The nine U.S. time zones, east to west:
            Atlantic standard time (AST)
            eastern standard time (EST)
            central standard time (CST)
            mountain standard time (MST)
            Pacific standard time (PST)
            Alaska standard time (AKST)
            Hawaii-Aleutian standard time (HST)
            Samoa standard time (UT-11)
            Chamorro standard time (UT+10)

Note that for editorial mentions of National Geographic Channel programs, NGP preferred style for time zones in air times is to list Eastern time followed by a slash, then Central time followed by a lowercase "c": 10/9c.