Jewel-Osco Holiday Hours ~ Open or Closed Today? General opening hours and holiday hours of operation. Note, that most stores have reduced hours on Sundays. Jewel-Osco Holiday Hours and General Hours of Operation. The majority of Jewel-Osco grocery stores generally stay open on the following holidays, though reduced hours may apply: – New Year’s Day– … Continue reading Jewel-Osco Holiday Hours ~ Closed/Open