As the freshman on our team, Colin, pointed out, GRT, the original G-Force, we work after school till bed time every day, and always on weekends. This is probably due to the fact that we students make our own parts, which puts a great time constraint on every thing we do.

working hours
 

Hauppauge, New York team 358 working hours:
Monday-Thursday: 6:00-10:00p.m.
Friday: it depends; sometimes from 3:00 to 10:00 and at other times we start at 6:00 and work until there is nothing else to do or we are so tired that we can't find the tools anymore.
Saturday: 9:00 to whenever (same deal as Friday nights).
In previous years we have worked overnight but the production process tends to slow down when the human body can no longer function at a normal rate. :D

Jessica M.