part-time

part-time
ˌpart-ˈtime adjective [only before noun]
someone who has a part-time job works for only part of each day or week:
    a part-time job
    women wishing to return to work on a part-time basis
—part-time adverb:
    She wants to work part-time after she’s had the baby.
—part-timer noun [countable]
⇨ full-time(1)