Definition, Meaning & Synonyms
greenwich-mean-time
noun
/ˈɡrɛnɪtʃ ˈmiːn taɪm/
Definition
The mean solar time at the Royal Observatory in Greenwich, London, used as the basis for standard time worldwide.
Examples
- London operates on Greenwich Mean Time during the winter months.
- Greenwich Mean Time was once the world’s time standard before the advent of Coordinated Universal Time (UTC).
- Travelers often use Greenwich Mean Time to coordinate meetings across different time zones.
Meaning
Greenwich Mean Time (GMT) is a time standard that reflects the mean solar time at the Prime Meridian, where longitude is defined as 0 degrees.
Synonyms
- GMT
- Universal Time (UT)
- Zulu Time
