Weekly off after 6 days of work is a must.
Check out the labour laws of your state.
Normal working hours will be 8 hours daily 48 hours a week.
Overtime is paid for extra hours of work.(This is theory.)
In practise security guards are overworked and underpaid.
12th November 2015 From India, Pune
14th November 2015 From United Kingdom, Swansea