All universal time coordinated synonyms
universal time coordinated
U u noun universal time coordinated
- greenwich mean time — the time as measured on the prime meridian running through Greenwich, England: used in England and as a standard of calculation elsewhere.
- international atomic time — a system of measuring time based on atomic clocks that measure the second as the basic unit of time in the International System of Units (SI). Abbreviation: IAT.
- coordinated universal time — Universal Time as periodically adjusted to coordinate with atomic clocks: it serves as the official international basis for standard time