How to calculate a Hebrew birthday

The calculation of a Hebrew birthday most used is a complex. The reason for being so complicated is because the secular calendar is solar, whereas the Jewish calendar is basically lunar, with the first c months coinciding with the new moon. A lunar year of 12 months is 11 days shorter than a solar year, so a leap month (Adar II) is added seven times during a 19-year cycle to keep the seasons in place.

Steps to follow:

one

Determine the exact day and time of birth in the secular (Gregorian) calendar. If you do not know the exact time, the determining factor for most is before or after sunset, since the Jewish day begins the night before. Saturday, for example, begins just before sunset, Friday night and ends with nightfall, Saturday night.

two

Enter the date in Hebcal Jewish Calendar Date Converter //www.hebcal.com/converter/ Click on the "After sunset" box in your case. Click on "Convert date to Hebrew." The date will be displayed in Hebrew and transliteration in English.

3

Click on "Yahrzeit, Birthday and Anniversary Calendar" to calculate the occurrences of this date in the future. Note especially that births occurred in the month of Adar II will be celebrated in Adar I in non-leap years, while yahrzeits (anniversaries of death) may be commemorated in the second Adar in some communities.