Christmas comes hand-in-hand with throngs of last-minute shoppers as well as anyone and everyone who still needs to run errands this time of year. Fortunately for all involved in the Christmas mayhem, a smattering of local retailers are posting a few hours for the two busiest days of the year. In terms of grocery stores, Safeway (Countryside Drive) will be open until 6 p.m. on Christmas Eve. They do not have hours available on Christmas Day, but have offered their Modesto store on McHenry Avenue as a substitute, which will be open from 8 a.m. to 5 p.m. Costco (Tegner Road) will also be open Christmas Eve from 9 a.m. to 5 p.m.