When Piper Mclean was turned to gold in The Lost Hero, it is said that she had a dream. This would imply that it is like being asleep, therefore time passes.
However, King Midas had victims from thousands of years ago (e.g. his daughter, his barber, etc), who also came back to life.
Does time not pass for King Midas' victims, or does time pass really slowly, like Thalia when she was a great pine tree (Except a lot slower)?