Schaltmonate
Schaltmonate, also known as leap months, are additional months inserted into the calendar in certain lunar and lunisolar calendars to synchronize the lunar year with the solar year. Unlike the more widely known leap days, which are added to the Gregorian calendar, leap months address the difference arising from the shorter lunar year, which is approximately 354 days, compared to the solar year of about 365.24 days.
The concept of Schaltmonate is most prominently found in traditional Chinese, Hebrew, and Vietnamese calendars. In
In the Hebrew calendar, a similar system called "pregnant months" or "embolismic months" is used to ensure
The decision of when to insert a leap month is highly methodical and involves astronomical observations and
Overall, Schaltmonate are an essential feature of certain calendar systems, allowing the lunar or lunisolar calendar