Rare card
Doomsday rule
- Value
- 50 W
- Attack
- 263
- Defence
- 211
- Players
- 0
The Doomsday rule, Doomsday algorithm or Doomsday method is an algorithm of determination of the day of the week for a given date. It provides a perpetual calendar because the Gregorian calendar moves in cycles of 400 years.
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