ISDATE function:
ISDATE function returns whether a value is a date.
Parts of an ISDATE function
ISDATE(value)
Part
Description
value
The value to be verified as a date.
Sample formulas
ISDATE(“July 20”)
ISDATE(A1)ISDATE("7/20/1969")
Notes
Ensure your date has quotation marks around it unless it’s a reference to a cell.
Examples
A
B
1
Formula
Result
2
=ISDATE(“July 20 1969”)
TRUE
3
=ISDATE(“1969-20-07”)
TRUE
4
=ISDATE(“July”)
FALSE
5
=ISDATE(“Feb 30”)
FALSE