Calculate 'time passed' based on 'latest activity'

You can use the time stamp and then subtract the current date/time and format as a days if it is days that have past…you could also format it just as a number to show if it is minutes.

Here is a screen shot from my set up for messages

Screen Shot 2020-08-10 at 12.01.09 AM

Note: I used the *-1 because I put the times in wrong order to start and was too lazy to change it all so I just multiplied by -1 to turn the negative to positive.