Children can only start full-time work once they’ve reached the minimum school leaving age - they can then work up to a maximum of 40 hours a week.
Dim ond pan fyddant wedi cyrraedd yr oedran ieuengaf ar gyfer gadael yr ysgol y caiff plant ddechrau gweithio'n llawn amser - wedyn cânt weithio hyd at 40 awr yr wythnos.