I work as a contractor so am not a direct employee as such. It's always been week-day work. The company however has secured a contract now for 4-6 months that involves weekend work and has requested everybody to 'chip in'. I just don't want to do it. I've no children so no ties as such but I've hobbies and things I like to do at weekends and I don't need the extra money. There was no discussions about this beforehand, we were just told they'd been awarded the contract.
I know if everyone says no there would be no one to do it - and I don't know how everyone else feels as we all work from home - so I'm thinking of politely declining. Is this reasonable?