A part time worker is an individual who is paid in relation to the partial or total hours worked, and is commonly less hours than someone who works full time.
WORKING PART-TIME - YOUR RIGHTFUL ENTITLEMENTS
As a rule part-time workers do not have a specific number of hours that qualifies them as part time.
But it is accepted that most full time workers complete at least 35 hours of work per week.
Contracted part-time workers do not usually receive overtime pay until they have worked more than the normal hours of full-time workers.
The Part-time Workers (Prevention of Less Favourable Treatment) Regulations for fixed-term employees, protect part time workers from being treated less favourably than full time workers doing the same job.
The ruling aims to help employers prevent discrimination at work, especially for female part time workers.
Part timers and full timers both share equal rights and benefits of employment - although some benefits are applied as a 'pro rata' principal and in proportion to the number of hours worked.
Part Time Workers Rights Regulations; UK Rules Updated 2017