do you have a personell department that you could ask in confidence? How about a friend in the company? In any case as you have been their for a year It is probably 4 weeks that you will be required to give. However, seeing as you get paid weekly, would it really do you any financial damage if you only gave them a week notice? This is assuming you have a new job to go to. Notice periods are a way of giving the company time to find a replacement, their part of the deal is that they make sure your wages are fully paid,To avoid difficulties, Id give them 4 weeks