I’d vote for circa 0900 in the morning.
Night shift does yoeman’s work and the continuity involved should be preserved.
I’ve noticed that after night shift knocks off, and us day shifters get the coffee in us, the thread peters-out between 9 and 10.
Trolls?
That part of the fun of day shift.
It keeps bagster from taking his naps.
gets him REAL agitated.
I try to float between day and night shift. But when you spend 20+ years on call 365 its second nature.