lunisolar is the type of calendar that is the jewish calendar.
lunisolar is the type of calendar that is the jewish calendar.
what type of calendar is the jewish calendar?
lunisolar
the new moon signifies the start of every jewish month, and is considered an important date and minor holiday in the hebrew calendar. the modern form of the calendar is a rule-based lunisolar calendar, akin to the chinese calendar, measuring months defined in lunar cycles as well as years measured in solar cycles, and distinct from the purely lunar islamic calendar and the predominantly solar gregorian calendar. the jewish calendar is calculated based on mathematical rules designed to ensure that festivals are observed in their traditional season. passover always falls in the springtime. this fixed lunisolar calendar follows rules introduced by hillel ii and refined until the ninth century this calculation makes use of a mean lunation length used by ptolemy and handed down from babylonians, which is still very accurate: ca. 29.530594 days vs. a present value (see ) of 29.530589 days. this difference of only 0.0000005, or five millionths of a day, adds up to about only four hours since babylonian times.
new moon
bullet::::- january 7: shia day of remembrance: death of harun rashid (islamic calendar)









































bullet::::- january 13: laba festival (chinese calendar)









































bullet::::- january 16: 10 shevat (jewish calendar, chabad only)









































bullet::::- january 16: shia day of remembrance: battle of the camel (islamic calendar)









































bullet::::- january 19: shabbat shirah (jewish calendar)









































bullet::::- january 20: shia day of mourning: martyrdom of janab-e-fatima-az-zahra, 11 a.h (islamic calendar)









































bullet::::- january 21: shia day of celebration:birth of imam zain-ul-abideen(a.s), 37 a.h. (islamic calendar)









































bullet::::- january 21: tu bishvat (jewish calendar)









































bullet::::- january 22: 22 shevat (jewish calendar, chabad only)
january