Deficient, regular, and complete years The rules of postponement of Rosh HaShanah make it that a Jewish common year will have 353, 354, or 355 days while a leap year (with the addition of Adar I which always has 30 days) has 383, 384, or 385 days.
Deficient regular and complete years The rules of postponement of Rosh HaShanah make it that a Jewish common year will have 353 354 or 355 days while a leap year (with the addition of Adar I which always has 30 days) has 383 384 or 385 days