What does "time zone" mean?

A range of longitudes where a common standard time is used.

Time zone

Common synonyms include: alaska time, apparent time, atlantic time, central time, civil time, daylight-saving time.

noun

noun ·Rare ·Advanced level

Noun

1
A range of longitudes where a common standard time is used.
2
any of the 24 regions of the globe (loosely divided by longitude) throughout which the same standard time is used wordnet