Employment law regarding breaks?

Hi, im currently working an 8 and a half hour day. from 9am to 5:50pm, during these hours i only get a half hour for lunch and no other breaks. someone know if this is legal in uk law? if not what is the minimum amount of time i should get for breaks? thanks
Answer
The wtr 1998 (working time regulations) state that:an employee is entitled to 20 minutes break for e 5 hours workedan employee is entitled to 11 uninterrupted hours rest per weekan employee cannot work more than 48 hpw (unless signed the opt-out option). this is measure over a 17 week periodyour employer is acting perfectly legally.