So if you do a long week (say -- 60 hours in 5 days toward a deadline), do you earn the same as in a shorter week (e.g. 40 hours)? Or do you get to bill 1.X yo

So if you do a long week (say -- 60 hours in 5 days toward a deadline), do you earn the same as in a shorter week (e.g. 40 hours)? Or do you get to bill 1.X your normal day rate for longer days? I'm curious as to whether there are any advantages to using day rates versus hourly.