EDATE

The result is a date which is a number of months away from the start date. Only months are considered; days are not used for calculation.

āϏāĻŋāύāĻŸā§āϝāĻžāĻ•ā§āϏ

EDATE(āĻļ⧁āϰ⧁āϰ āϤāĻžāϰāĻŋāĻ–; āĻŽāĻžāϏ)

āĻļ⧁āϰ⧁āϰ āϤāĻžāϰāĻŋāĻ– āĻāĻ•āϟāĻŋ āϤāĻžāϰāĻŋāĻ–āĨ¤

āĻŽāĻžāϏ āĻļ⧁āϰ⧁āϰ āϤāĻžāϰāĻŋāϖ⧇āϰ āĻĒā§‚āĻ°ā§āĻŦ⧇ (āύ⧇āϗ⧇āϟāĻŋāĻ­) āĻ…āĻĨāĻŦāĻž āĻĒāϰ⧇ (āĻĒāϜāĻŋāϟāĻŋāĻ­) āĻŽāĻžāϏ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāĨ¤

āωāĻĻāĻžāĻšāϰāĻŖ

What date is one month prior to 2001-03-31?

=EDATE("2001-03-31";-1) returns the serial number 36950. Formatted as a date, this is 2001-02-28.