Hebrew date converter
Convert a date in either direction - civil to Hebrew, or Hebrew to civil.
Chosen: Tuesday · 25th of Tishrei, 5787 · October 6, 2026
In the Hebrew calendar
25th of Tishrei, 5787
In the civil calendar
Tuesday, 6 October 2026
How the two calendars differ
The civil calendar is solar: twelve months, 365 days, corrected by a leap day every four years. The Hebrew calendar is lunisolar - its months follow the moon, which makes a year of about 354 days, and an extra month is added seven times in every nineteen years so that Pesach stays in spring.
That is the whole reason a Hebrew date does not map onto a fixed civil one. The gap drifts by about eleven days a year and then corrects.
The months
In the order the calendar counts them from Tishrei:
- Tishrei - 30 days
- Cheshvan - 29 or 30
- Kislev - 29 or 30
- Tevet - 29
- Shvat - 30
- Adar - 29 (Adar I has 30 in a leap year, followed by Adar II)
- Nisan - 30
- Iyyar - 29
- Sivan - 30
- Tamuz - 29
- Av - 30
- Elul - 29
The day begins in the evening
A Hebrew date runs from sunset to sunset, so it overlaps two civil dates. A converter gives the daytime match - the Hebrew date for the daylight part of that civil day. For an event that happened after dark, take the following Hebrew date.
Common questions
What is today in the Hebrew calendar?
The converter above opens on today, so the answer is already on the page.
Why does the Hebrew year number differ by one during the year?
The Hebrew year changes at Rosh Hashana, in September or October, not on 1 January. So a single civil year spans two Hebrew ones.
What is a leap year in the Hebrew calendar?
A year with a thirteenth month, Adar I, inserted before Adar. It happens seven times in a nineteen-year cycle: years 3, 6, 8, 11, 14, 17 and 19.