Part-time work. Working part time can be a good way of balancing your work and your personal commitments. If you work part-time, you have the right to be treated fairly in comparison to your full-time colleagues. What a part-time worker is. A part-time worker is someone who works fewer hours than a full-time worker. There's no specific number of hours that makes someone full or part-time, but a full-time worker will usually work 35 hours or more a week.