Most time ever put into homework in one night?

[MegaMatt]

I think I just broke my record.
Took me 6 hours (7-1) to prepare an 8 page booklet on Robber Barons/Muckrakers for my seminar in my American History class.

Procrastination sucks.

What is the most time you've ever put into homework in one night?

 

[LegitNamesCo]

4/5 hours..

 

[Celtic]

about 8 hours, got damn AP Calculus!

 

[Macroman]

8 -12 hours, I left my assignment Science report to the last night, and the thing was bloody huge.

 

[†Tysonâ€Â]

I usually leave it to the last 'day' since otherwise i get a massive lecture from my parents.

So i've done about 8 hours in a day. Like 4 hours max in a night.