Returns the date of Easter Sunday for the entered year.
Year is an integer between 1583 and 9956 or 0 and 99. You can also calculate other holidays by simple addition with this date.
Easter Monday = EASTERSUNDAY() + 1
Good Friday = EASTERSUNDAY() - 2
Pentecost Sunday = EASTERSUNDAY() + 49
Pentecost Monday = EASTERSUNDAY() + 50
=EASTERSUNDAY(2000) returns 2000-04-23.
=EASTERSUNDAY(2000)+49 returns the internal serial number 36688. The result is 2000-06-11. Format the serial date number as a date, for example in the format YYYY-MM-DD.