true if Cheshvan is long in Hebrew year.
Cheshvan normally has 29 days, but gains a 30th in a "complete" (שלמה) year, one of the two ways the calendar stretches a year to keep Rosh Hashanah off a forbidden weekday.
Hebrew year
true if Cheshvan has 30 days
true
longCheshvan(5783); // truelongCheshvan(5784); // false Copy
longCheshvan(5783); // truelongCheshvan(5784); // false
true if Cheshvan is long in Hebrew year.
Cheshvan normally has 29 days, but gains a 30th in a "complete" (שלמה) year, one of the two ways the calendar stretches a year to keep Rosh Hashanah off a forbidden weekday.