Is the store open on the 25th of December, and if so what are the hours?

All Mariano's store will be close and Jewel Osco by the 25th

No

All Mariano's stores are only opened until 3pm Christmas day. 😊

Some stores will be, doesn't specify which ones yet and just says they'll open late and close early. I'd recommend calling your neighborhood location just to verify.

Store is not sure of the hours