We short staff at work, i do 12 to 13 hours days in 5 days can my job mandatory me to do 6 days every week

The answer is fact specific. For example, prison guards and air traffic controllers and IT repair techicians and nurses at care centers work continuous shifts if replacememt does not come to work. The employees must be paid for this additional work. What is your circumstance ? Are you being paid ? Ed Dimon