Rhanbarth o'r Ddaear sydd wedi mabwysiadu'r un amser safonol, sydd fel arfer yn cael ei alw'n amser lleol, yw cylchfa amser (lluosog: cylchfaoedd amser, cylchfâu amser).
 | |
| Math | non-political administrative territorial entity, safon amser, rhanbarth  |
|---|---|
 Ffeiliau perthnasol ar Gomin Wicimedia | |
Gweler hefyd
- Amser Safonol Greenwich
- UTC
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
