I need ideas on finding the duration of a script in microsoft access

Hello,

I’m only an intern, and I have the lovely task of finding the duration of scripts. I have ideas on how to accomplish this, but I have one problem. I have to get the start time from an email, which is located in a field in this huge database. I don’t know how to get that start time. I’m using microsoft access. I’m sure I’ll have to use the datediff() function to get the time in minutes.