Aren’t there rules for how many hours can fly before taking required rest break? Perhaps not in Pakistan.
Yes, under Part 121 we can go for 17:00 hours with a 3 man crew. With a heavy crew (me and 3 first officers) 24 hours. Way to long to be on the jet. Right now the longest flight that I do is from Louisville to Dubai and with the Jetstreams it’s about 17 hours. A$$ Pain.