Well I'm not sure as I left a few days after the notice came around, so didn't bother to dispute it, but there certainly didn't seem to be any mention of atheists being entitled to those days off. If they were entitled to those days off, why not just give everyone 3 extra days off and let them take them whenever they like? What's the advantage to the local authority of tying people down to taking certain days rather than others? Madness.