To to be on average 8 hours and a absolute no work outside worktime policy. My bosses can not reach me in my recreational time. 10 hours is the absolute maximum

To to be on average 8 hours and a absolute no work outside worktime policy. My bosses can not reach me in my recreational time. 10 hours is the absolute maximum that i work in rare situations. After nine hours i try to make it easier for the next day me to continue.