rack duty

rack time

Time spent by a soldier in his bunk sleeping or recuperating. The vice admiral made a public statement vowing to give all sailors more rack time so that they can perform their duties with greater efficiency.
See also: rack, time
Farlex Dictionary of Idioms.

rack duty

verb
See rack time
See also: duty, rack
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • any time means no time
  • against time
  • against the clock
  • any time
  • (it's) time to run
  • anytime
  • (it's) time to push along
  • about time
  • (it's) (a)bout time
  • (it's) time to hit the road