when does the hebrew month of elul begin
Elul Elul (Hebrew: אֱלוּל‎, Standard Elul Tiberian ʾĔlûl) is the twelfth month of the Jewish civil year and the sixth month of the ecclesiastical year on the Hebrew calendar. It is a summer month of 29 days. Elul usually occurs in August–September on the Gregorian calendar.
Hebrew calendar The Hebrew lunar year is about eleven days shorter than the solar year and uses the 19-year Metonic cycle to bring it into line with the solar year, with the addition of an intercalary month every two or three years, for a total of seven times per 19 years. Even with this intercalation, the average Hebrew calendar year is longer by about 6 minutes and 40 seconds than the current mean tropical year, so that every 216 years the Hebrew calendar will fall a day behind the current mean tropical year; and about every 231 years it will fall a day behind the mean Gregorian calendar year.[citation needed]