- The definition of part time is something that is done for less than the normal amount of hours invested, or for less than the full duration that it is normally done.
An example of a part time job is a job where you work less than the customary 40 hours per week.
as a part-time employee, student, etc.: to work part time
designating, of, or engaged in work, study, etc. for specified periods regarded as taking less time than a regular or full schedule
For or during less than the customary or standard time: a part-time job.