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I'd expect in a lunar calendar system? (where 12 lunar months are to short to fill a year, and I think some of them fix this by inserting an extra half-month)
by detaro 4y ago
I'd expect in a lunar calendar system? (where 12 lunar months are to short to fill a year, and I think some of them fix this by inserting an extra half-month)
But I wish this list came with examples, and if it really means a different calendar system it's IMHO not as interesting, because it's IMHO fairly obvious that different calendar systems follow different rules. Or maybe during the switch to Gregorian calendar? That you'd at least encounter with dates for things long ago - although that transition is very "here be dragons" and very local.
- pointlessone 4y agoLunar month is a little over 29 days on average. And most lunar calendars do not align with solar year but rather have leap months added. E.g. Hebrew calendar [1]. [1]: https://en.wikipedia.org/wiki/Hebrew_calendar https://en.wikipedia.org/wiki/Hebrew_calendar
- detaro 4y agoOk, you made me look up an example: "The Ethiopian calendar has twelve months of thirty days plus five or six epagomenal days, which comprise a thirteenth month." https://en.wikipedia.org/wiki/Intercalation_(timekeeping) https://en.wikipedia.org/wiki/Intercalation_(timekeeping) https://en.wikipedia.org/wiki/Ethiopian_calendar https://en.wikipedia.org/wiki/Ethiopian_calendar I guess its the choice if you fix the offset every year or wait until you accumulate a full month of offset.