off-duty
/ɒfˈdjuːti/ /ɒfˈdʒuːti/adverb
When not engaged in or occupied with one's regular work; away from normal duties.
noun
A period off-duty; time spent off-duty.
adjective
Of persons: not engaged in or occupied with regular work, not on duty. Also of things, actions, etc.: relating to or suggestive of this state.
Origin
Late 18th century; earliest use found in George Washington (1732–1799), revolutionary army officer and president of the United States of America. From off + duty.