Explanation
Data validation rules are triggered when a user adds or changes a cell value.
To get a number for a Monday-based week, thereturn_typeargument for WEEKDAY is provided as 2.
The WEEKDAY result is then compared to 6.
Any value less than 6 is a weekday, so the expression returns TRUE and validation succeeds.
The TODAY function takes no arguments.
you’re able to format the value returned by TODAY with a datenumber format.
If you need current date and time, use…