ISDATE is a function in Google Sheets that can be used to test whether a given value is a date. The function takes a single argument, which is the value that you want to test. If the value is a date, the function will return True. If the value is not a date, the function will return False.
The syntax of ISDATE in Google Sheets is as follows:
=ISDATE(serial_number)
Where serial_number is the date in the format yyyy-mm-dd.
ISDATE is a function in Google Sheets that can be used to determine if a given value is a date. The function takes one argument, which is the value to test. If the value is a date, the function will return true, otherwise it will return false. An example of how to use the ISDATE function is shown below:
=ISDATE("1/1/2018")
This formula will return true, because the value "1/1/2018" is a date.
ISDATE should not be used in Google Sheets when attempting to compare two dates to determine if they are equal. Google Sheets uses the ISO 8601 date format, which differs from the American date format. The ISO 8601 date format uses the year, month, and day, while the American date format uses the month, day, and year.
ISDATE is a formula used in Google Sheets to determine whether or not a date is valid. There are a few similar formulae that can be used to accomplish the same task. The DATEVALUE function takes a date in text format and converts it into a date serial number. The DATE function takes two input parameters, a year, and a month, and returns the date serial number for that day. The DAY function takes a date serial number and returns the day of the month for that date. The MONTH function takes a date serial number and returns the month for that date.
