
The instructions are very clear.
Don't feed the gremlins after MIDNIGHT.
The Big Bang Theory Season 3, Episode 4

Midnight, really?
The Big Bang Theory Season 9, Episode 15

Good food, good friends,
and sometime around MIDNIGHT...
The Big Bang Theory Season 8, Episode 18

Midnight.
The Big Bang Theory Season 9, Episode 15

Midnight blue or silver?
Game of Thrones Season 6, Episode 6