Yes, unless you have an employment contract prohibiting it.
168 hours
There are 168 hours in a week. 24 times 7 for the hours in a day times the days in a week.
55 hrs/week
31.35 hours
8 hrs a week
(in the US) Under FLSA - 32 hours or less a week is considered part-time employment. More than 32 hours a week is considered full-time employment. ----------------- The employer can requires as few or as many hours as it wishes, as long as it pays for all hours worked.
It is 171 hours which is a week and 3 hours.
Unless you have a contract guaranteeing you a certain amount of hours a week an employer can change your schedule at will.
According to what I heard, 50 hrs a week is starting.
40 hrs a week is normal (average)
12.5 hrs
8 hrs a week