have time on your hands

have time on (one's) hands

To have extra or spare time in which one has nothing specific to do or accomplish. I'll have a bit more time on my hands now that we've finished the year-end audit. Our kids had too much time on their hands last summer break, so we decided to enroll them in a few different summer camps to keep them occupied.
See also: hand, have, on, time
Farlex Dictionary of Idioms.

have ˈtime on your hands

(informal) have more free time than you want or need: Now the children have left home, she’s got a lot more time on her hands. OPPOSITE: have your hands full
See also: hand, have, on, time
Farlex Partner Idioms Dictionary
See also:
  • any time means no time
  • a race against time
  • any day
  • any old time
  • become pushed for time
  • about time too
  • (it's) time to push along
  • against time
  • at the appointed time
  • against the clock