Hebrew calendar
The calculator converts dates from Hebrew calendar to Gregorian and vice versa.
This page exists due to the efforts of the following people:
Anton
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 | Timur
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The Hebrew calendar is a lunisolar calendar used for Jewish religious purposes. The calendar tries to match both the lunar months and the solar year. Since this task is quite complicated, the calendar rules are complicated too (see below the calculators). Use the following calculators to convert Gregorian dates and Hebrew dates.
Hebrew date to Gregorian date
The inverse conversion:
Gregorian date to Hebrew date
The Hebrew calendar rules
The Hebrew year consists of 12 months in a common year and 13 months in a leap year. The additional 30-day month (Adar I) is inserted before the 29-days (Adar II) every 3,6,8,11,14,17,19 year of the 19-year cycle. According to the complex criteria, the length of the 8th and 9th months varies from 29 to 30 days, which is fully described in the book1 or wikipedia2. A new Hebrew year begins on the 1st of the 7th month (Tishri). Unlike the Gregorian calendar, a Hebrew day begins at sunset, so you should allow a one-day correction if the calculation is performed for the period of time between sunset and midnight.
The Hebrew calendar summary
| Calendar type | Lunisolar |
| Place | Israel |
| Days in a year | 365.2468 |
| Effective date | 9th century CE |
| End date | present |
| Epoch (Julian) | October 7th, 3761 BCE |
| Month count | 12,13 |
| Days in a week | 7 |
| Days in a year | 353-355, 383-385 |
| Days in a month | 30, 29 |
| Leap year | every 3d, 6th, 8th, 11th, 14th, 17th, 19th year is leap |
Month names
| #,Month name | Days |
|---|---|
| 1, Nisan | 30 |
| 2, Iyyar | 29 |
| 3, Sivan | 30 |
| 4, Tammuz | 29 |
| 5, Av | 30 |
| 6, Elul | 29 |
| 7, Tishri | 30 |
| 8, Marheshvan | 29,30 |
| 9, Kislev | 29,30 |
| 10, Tevet | 29 |
| 11, Shevat | 30 |
| 12, Adar I | 30 |
| 13, Adar, Adar II | 29 |
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N.Dershowitz, E.M. Reingold Calendrical Calculations Third edition, p.p. 89-101 ↩
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