In a field I used to work in we did 84hr weeks (7-12s) for a few month stretches then a little break to normal hours or time off before ramping up again. This w

In a field I used to work in we did 84hr weeks (7-12s) for a few month stretches then a little break to normal hours or time off before ramping up again. This was physical labor work however. There's no way I could work that schedule productively in a programming job. That was one of the hard things to get over when I went from skilled trades jobs to programming. It's a different kind of exhaustion you feel from working long ass hours and it's much harder for me to concentrate on code after hour 10.