when do you say next year in jerusalem
L'Shana Haba'ah L'Shana Haba'ah B'Yerushalayim (Hebrew: לשנה הבאה בירושלים‎, lit. "Next year in Jerusalem") is a phrase that is often sung at the end of the Passover Seder[1][2] and at the end of the Ne'ila service on Yom Kippur.[3][4] Its use during Passover was first recorded by Isaac Tyrnau in his 15th century CE book cataloging the Minhaggim of various Ashkenazi communities.[5][6]
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]