on-duty
adjectiveUK /ˌɒn ˈdjuːti/
US /ˌɑːn ˈduːti/
Working at your job right now.
The nurse is on-duty tonight at the hospital.
SYNONYMS
OTHER MEANINGS
2. Being ready to help people as part of your job.
The on-duty lifeguard watched the pool carefully.
3. Doing the tasks you are supposed to do at work.
Please call the on-duty manager if you need help.
4. Serving at a particular time, like a doctor or police officer.
An on-duty officer stopped the car.