I am trying to limit the End Time of a Calendar Event to be within +8 hours of the creation time.

I've used this formula =AND([End Time]>=TODAY(),[End Time]<=DATE(YEAR(TODAY()),MONTH(TODAY())+2,DAY(TODAY()))) to limit the End Time to +2 months from the creation date, but can't get something similar to work in regards to Hours.


I was able to do this using list validation (not column validation). I used this formula:

=AND([End Time]<=([Created]+TIME(8,0,0)),[End Time]>[Created])

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