I'm required to put in about 6 hours of work per month from home, during a weekend. At my 'level' the company officialy doesnt compensate overhours. Says so in my employment contract.
This weekend a network server change requires the small IT-staff to be present for <>3 hours to test the network. Also, my turn to do the 6-hours job. All-in-all i will be spending a full workday dedicated to work!!!
How can i best make it clear to my manager, that I dont much enjoy "woking for charity"?