That wasn't what I searched for and did a follow, here is a repeat of the original and follow up I tried (or as best as I can remember, I know it actually showed me python code last time, now it's showing SQL and python results).
Sidenote: This slide over modal (that hides the results of the first query, you cannot get to them once you do a follow up) has got to be the worst of all worlds. It's very unintuitive, doesn't provide any value, makes your initial query only as useful as what you can see "before the fold". Just redirect to the new results or append them under. This modal is frustrating to work with, it's a weird parallax-type thing: https://cs.joshstrange.com/d6rhPZ
Original (php get end of day timestamp): https://cs.joshstrange.com/50y9Pf
Follow up (end of month timestamp): https://cs.joshstrange.com/hStUEm
Sidenote: This slide over modal (that hides the results of the first query, you cannot get to them once you do a follow up) has got to be the worst of all worlds. It's very unintuitive, doesn't provide any value, makes your initial query only as useful as what you can see "before the fold". Just redirect to the new results or append them under. This modal is frustrating to work with, it's a weird parallax-type thing: https://cs.joshstrange.com/d6rhPZ