I have a SharePoint 2016 team site with a list that will be used for a shift log.
I want to limit the ability to modify a log to only be editable for 12 hours.
Currently I am using list validation with the following formula, that I thought would limit for 1 day. It doesn't seem to work. Maybe it's a syntax issue. I would like to fix this formula, and change it to be 12 hours instead of 1 day.