Comun Datetiem value from other source

Hi. How are you?
My question is about the datetime column. I need that one column take the hour from NTP server or appsheet server, because on mobile devices the users can change the datetime and the app can be violated to take the hour of attendance record.

Is possible?

Not sure exactly what you’re asking, but maybe you just need to put NOW() in the “Initial Value” field of the column definition?

NOW() and TIMENOW() expressions read the datetime or time value from the user’s device. Provided this issue is too important for you, I encourage you to use UTCNOW() expression as an initial value for your datetime column, where the expression’s value is coming from the AppSheet server.

Not possible.

Possible, but not reliable.