Group by date in custom field

[marisoft]

I need to create a summary report grouped on date.
The date is stored in the column as Unix date/time eg.: 1584299972 and shown in the list like this: 2020-04-13 06:09
I thought I could create a custom field and extract the date part of the unix date/time in the row rendering event, and use this for grouping.

Is this possible ?

tia
/Poul

[arbei]

You may create a view to add a date field from the timestamp first.