If the grass is dry and I am close to finishing, on come the lights. This time of year the weeds and crabgrass hold the moisture later of a morning and earlier of an evening, so I don't mow so late, no lights.

Only trouble with mowing in the dark, is this: No doubt the neighbors heading for church, next morning, will surely think you were tipping the "sauce" the night before!
Or, invariably, you will run over yer wife's prize petunia patch!

not too many days from now, lots of neighborhood parents are gonna be wrestling with putting kids to bed early with school swinging back into session.... so, get out there after dusk with yer blatting tractor at yer own risk. Body armour optional.