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Secular perpetual calendar

Franck Muller Aeternitas 4
with secular perpetual calendar
© Franck Muller

Calendar function

Rare variant of the perpetual calendar, which also takes into account the long-term exclusion rules for determining the leap years partially

  • 100s rule = 1900, 2100, 2200, … are no leap years, or even completely
  • 400s rule = 2000, 2400, … again are leap years.
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secular_perpetual_calendar.txt · Last modified: 11.10.2021 17:01 (external edit)

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