Hebrew Date Converter
Convert any Gregorian date to the Hebrew calendar and find when its Hebrew anniversary next occurs.
Result
The Hebrew calendar is lunisolar: months follow the moon while leap months keep the festivals aligned with the seasons, so a Hebrew date drifts against the Gregorian calendar from year to year. Birthdays, yahrzeit remembrance days and holidays are all fixed by the Hebrew date, not the Gregorian one.
This converter takes any Gregorian date and renders it in the Hebrew calendar — day, month and year counted from the traditional epoch of creation. The conversion uses the precise Hebrew calendar arithmetic built into every modern browser, so the result matches printed calendars exactly.
It also answers the practical question people usually come with: when does this Hebrew date occur next? The tool scans forward from today and shows the next Gregorian date on which the same Hebrew day and month fall, together with its weekday.
As with all tools on this site, the calculation is performed locally and no dates are transmitted anywhere. Note that Hebrew days begin at sunset — for events after sundown, the following Hebrew date applies.