Being that my son E- is now firmly 2-and-a-half, the following is the nice version of most every conversation we have with him these days.
J-: Okay E-, it's bedtime.
E- (jumbling up something he's heard us tell ourselves as we serve dinner at bedtime these days): Nooo... it's winner-time!
Me: Did you mean "summertime"?
J- (unmoved by this ingenious ploy): Well, it's night-night time either way.
E-: No it not... (looking out the window, for effect) ...It mornin' time!
He went to bed shortly afterward, under formal protest.
You may enjoy my previous E- conversations, (9YO son) D- conversations, (6YO daughter) M- conversations, and (wife) J- conversations.