Time hangs heavy on hands
time hangs heavy on (one's) hands
Time seems to pass very slowly for one, as due to boredom or a lack of stimulation. I always find that time hangs heavy on my hands at these corporate seminars, so I bring a lot of crossword puzzles with me. It's a nice job with good pay, but time hangs heavy on your hands in there.
Time hangs heavy on someone's hands.
Prov. Time seems to go slowly when one has nothing to do. (Note the variations in the examples.) I don't like it when time hangs so heavily on my hands. John looks so bored. Time hangs heavy on his hands.