Earlier quoted context omitted.
"Demanding client" doesnt mean unlimited funding. i find that the most demanding ones also look most closely at their bills.
“Demanding client” is usually code for “behaves like a spoiled child because nobody dared to tell them no.” The most demanding clients I’ve witnessed were mid-level managers from MTV and Universal Music. Called for work being done on a weekend just because they felt like. The way I usually approach these discussions is “ok, you can have the feature built this weekend, this means people need to work their weekend, tha…
24-hour is harder, but when you have clients across different time zones, it is also a norm. Again, with big films scattering themselves across the globe, it is expected that someone in authority picks up 24/7 because your 3am is sometimes the client's 10am.
You can charge more for this, but the client doesn't want to hear complaints. You will be judged on service rendered for a given price. The firm down the street, the one who can provide people on a sunday without overtime, will win the next contract.