I have only played in smaller tournaments. Generally, there were 2 time controls allowed, because not everyone owned a clock that could do Fischer. So maybe you could either play at 60 moves in 2 hours, or 60 moves in 90 minutes with a 3 second time delay.
I suspect the bigger tournaments are more strict, but that was my experience with OTB chess.
I'm afraid I'll get to an endgame I know how to draw, but I'll have 1 minute left on my clock, and my opponent, with 5 minutes left, will want to play it out even though I insist it is a draw.
Also, I know I'll play people who correctly point out that masters always agree to a draw in this type of endgame. But I'll want them to prove that they have the skills to draw it. I don't want to feel bad if they don't have time on their clock.
The point of clocks is to keep it even and keep people from just staring at the board forever. They are not for ruining endgames. Anyone know what typical tournament rules are? I also like the idea of a certain amount of time for the first 20 moves, and a certain amount added for the next 20, etc, so someone who blunders in the oppening and is near checkmate can't just make the winning opponent sit there for an hour waiting for the last move.