Bully
38 Achievements
20-25h
After Hours
Spend 5 hours out after curfew.
44.5%
How to unlock the After Hours achievement in Bully - Definitive Guide
However this trophy is accumulative so if you stay out multiple nights after curfew then you will get this eventually, it will only take 2-3 nights at most.
You have to be outside your dorm for this to count as well, you cannot wait inside the boy's dorms.
You have to be seeing the message on your trouble meter "Violating Curfew" for this to be counting basically.
Curfew begins each day at 11:00 pm and lasts until 02:00 am, at which point you will automatically pass out and reawaken at 08:00 am. As such, you can spend a maximum of three hours out after curfew each day/ night. You can unlock this trophy as early as the second night in the game as that is the earliest in which you can reach five hours out after curfew.
If you are caught by security/ authority you will be sent to bed and will awake the next morning. This trophy will most certainly unlock through natural progression of the game as you complete missions.
You can track your progress for this trophy in the Stats menu by pressing and then navigating to Stats > Social > Authority > Time Out After Curfew.