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History: 400-year leap cycle

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9 January 2024

8 January 2024

  • curprev 09:3309:33, 8 January 2024 Crissov talk contribs 6,491 bytes −126 reorganized sections Tag: Source edit

7 January 2024

5 January 2024

7 October 2022

5 October 2022

4 October 2022

  • curprev 13:4013:40, 4 October 2022 Crissov talk contribs 3,825 bytes +3,825 Created page with "A leap cycle of 400 years contains 97 leap days or 71 leap weeks and thus overall 146097 days and 20871 weeks or 4800 twelfth-of-a-year months, spanning roughly 4947.3 lunations. Its mean year length is 365.2425 days or 365 days, 5 hours, 49 minutes and 12 seconds. It is the cycle of the Gregorian calendar and thus the International Standard Calendar from ISO 8601. Many reform proposals keep it either explicitly or implicitly, e.g. the World Calendar, the..." Tag: Source edit
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