timed Powerheads?

[Fishward]

Hey all,
just curious what everyone else does with timing powerheads on and off overnight... what sort of flow they maintain during the day vs during the night.. Does everyone have their powerheads on timers?

I have 2 Korallia 3s and 1 Korallia 2 in a 4ft 65 gallon.. any suggestions on what to keep running overnight and what to switch on only for the day?

Thanks!