This is such a fantastic & useful tip, @Kuovonne!!
Thank you for sharing these excellent formulas, and also for reminding all of us about the incredibly useful Unix millisecond timestamp. 
On a somewhat related note to @kuovonne’s tip:
If you want to lookup a field from another table, but you only want to lookup data from whichever linked record contains the earliest/latest date, you can start with @kuovonne’s formulas in the linked table, and then use the extra tricks that I discuss in the BuiltOnAir podcast episode below.
Sorry, it’s late here & I’m about to go to sleep, so I’m just being lazy by linking to my video. 
But in the future, I’ll come back & type out the full instructions here!
