quarter after one

A cult celebration ritual that takes place at 1:15 am, a gathering is held in which the participants do whippets while jamming out to "Need you Now" by Lady Antebellum.

Person 1: "Did you have any plans for quarter after one this evening?"
Person 2: "Hell yeah, I just bought three whipped cream canisters!"
Person 1: "It's gonna be the greatest one minute ever!"