Diwrnod Gweler hefyd | Llywioychwanegu ato
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ddaearawrhaulnos
Diwrnod
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Dagr, duw Diwrnod ym mytholeg y Llychlynwyr (paentiad gan Peter Nicolai Arbo)
Diwrnod (hefyd Dydd) yw un cylchdro cyfan o'r ddaear, a wneir mewn 24 awr. Wrth fod y ddaear yn cylchdroi bydd rhan o'r ddaear yn wynebu'r haul a dyma sy'n ddydd ar y rhan honno o'r ddaear. Pan na fydd y rhan honno o'r ddaear yn wynebu'r haul dyna pryd y bydd hi'n nos ar y rhan honno o'r ddaear.
Gweler hefyd |
- Nos
- Dyddiau'r Wythnos
Eginyn erthygl sydd uchod am y calendr neu amser. Gallwch helpu Wicipedia drwy ychwanegu ato.
Chwiliwch am diwrnod
yn Wiciadur.
yn Wiciadur.
Categorïau:
- Egin calendr
- Unedau amser
- Unedau SI ychwanegol
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