The night of Day Light Savings when a group of people get together, and eat snacks from one o'clock, untill two, when you are to change your clocks back.
You eat at one o'clock, change clocks back, eat at one again.
'Dude, I'm hungry!'
'Oh man, it's one o'clock, and we need to change our clocks back in an hour.'
'Double One O'clock Munchies?'