- "To all Students: Curfew is at 11pm. If you are caught after curfew, you will be sent to your room immediately."
- — Bulletin Board
Being outside after curfew starts is a rule violation and will fill Jimmy's trouble meter by 1/3, which will not drop until the curfew is over. Students, including Jimmy, are supposed to be inside their dorms before curfew.
When curfew begins, authority figures will give chase and attempt to bust Jimmy or any student on sight still walking around. The prefects patrol the school grounds with flashlights, and the police roam the streets also with flashlights.
If Jimmy is busted on school grounds, he will be sent to the Boys' Dorm, if he's busted off school grounds, he'll be dropped off at the front gates of the school. If Jimmy is wearing the black ninja outfit, however, he can be out after curfew without getting into trouble, but will still pass out at 2 a.m.
Most students respect curfew and go to bed on time. In fact, students can be found wearing their pajamas inside the dorms if it's late enough. In a few places where authority figures don't often go, students will break curfew - Jocks can be sometimes be seen on the football field after curfew. Many students can be seen at Billy Crane's Traveling Carnival during curfew but will be busted if caught by the police.
During curfew, the school grounds are quiet and students are rarely seen walking around. By the Boys' Dorm, a random male Greaser (with the exception to Johnny) can be seen throwing eggs at the dorm and two Bullies (with the exception of Russell) are seen having a conversation.
Off-campus, the Townies and Townsfolk can be seen wandering around as usual. In areas that are occupied by cliques (For example, the Greasers occupy New Coventry), the Townies can be seen roaming the streets where they normally don't go as students are prohibited from being outdoors.
- Jimmy cannot apologize to authority figures for violating curfew, as the trouble meter will not go down as long as he is outdoors.