The 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("7/20/1969")
ISDATE(“July 20”)
ISDATE(A1)
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 |