Related Clues:
- Astronomer's std
- Setting at St. Andrews
- Prime Meridian letters
- World standard clock setting (Abbr.)
- Time std. at the prime meridian
- Astronomers' std
- Setting in Eng
- Sir S. Fleming invention
- Chronometric std
- U.K. clock setting
- U.K. clock standard
- Prime meridian abbr
- Global time regime invented by S. Fleming
- World clock standard: Abbr
- It's later than EST