The later in the night the better it is and the more trivial the nature of the email the more amazing it is! It shows that work is ALWAYS on your mind and you are extremely detail oriented to worry about the trivialities.
Make sure your boss is cc-ed on this email, otherwise it’s completely pointless!
If you don't want to stay up too late for the email, you can always head out for a Nandoo walk (do NOT tell us you cannot spare 10 minutes of your time!) and get rained in dope-ass cash rewards! No pressure, totally your call, but really…