NaN after calculating Duration

[Anastasiya_Dziu]

The formula is indicated on the screenshot. How to get Duration value, not a NaN?

[kuovonne · Accepted solution]

Welcome to the Airtable community!

Math with dates can get a little tricky. Sometimes you need to use a function instead of a simple operator.

DATETIME_DIFF({Starttime}, {Requestdate}, 'seconds')

It is documented in the formula field reference.