off duty
Officially not in the capacity of working during one's normal working day or assigned hours; not on duty. Typically used of doctors, nurses, and police officers. Often hyphenated. Sorry, I'm off duty. You should ask someone at reception. An off-duty police officer leapt into action and managed to apprehend the criminal.
off duty
not working at one's job. (The opposite of on duty.) I'm sorry, I can't talk to you until I'm off duty. The police officer couldn't help me because he was off duty.
off duty
see under on duty.
on/off ˈduty
(of nurses, police officers, etc.) working/not working at a particular time: Who’s on duty today?What time do you go off duty? off duty
Not engaged in or responsible for assigned work.