Related Clues:
- Old Eng. standard
- Standard used to set zones, briefly
- Greenwich time zone, briefly
- S. Fleming invention
- Clock reference for the BBC World Service: abbr.
- It's eight hrs. later than PST
- Astronomers' time, abbr.
- Time zone through England
- Hr. at the prime meridian
- Prime meridian letters
- Clock-setting standard (Abbr.)
- Std. in chronometry
- Cousin of HST
- English time letters
- Clock standard letters