[theamk]

> But my immediate manager won't allow it because the budget is allocated for the year, and if I bill extra hours, there will be a shortage of budget (or at least that's what he tells me). The client manager pushes so much work on to us, entire team is fed up. Last week, we were asked to work from 7 am to 11:30 pm, pretty much non stop.

At this point you send email to both managers and ask, "so do you want me to limit myself to 8 hours, or should I work overtime" and have them come to a decision.

(A decision might be: "work overtime but lie on your timesheet", in which case you save this email in case you need it for the future wrongful termination lawsuit.)