Rossmoor busses will operate on a holiday schedule around the Christmas and New Year’s holidays. On Tuesday, Dec. 24, the regular Dial-A-Bus service will be in place for Christmas Eve. Call at least one hour in advance to schedule a ride. On Wednesday, Dec. 25, limited Dial-A-Bus service is available between 9 a.m. and 4 p.m. Downtown Walnut Creek service will be at 9:30 and 11:30 a.m. and