In Caspio Report DataPage , you can leverage the Advanced Reporting Calculated Field feature to calculate the number of days between the current date and the record submission date using the datediff function.

Datediff(day,[@field:DateLogged],GetUTCDate())

DateLogged should be replaced with the name of your field where record submission dates are stamped.

To adjust the current date and time to your time zone see the example below which adjusts the time to Pacific which is 8 hours behind UTC.

Datediff(day,[@field:DateLogged],Dateadd(hour,-8,GetUTCDate()))