Emergencies can happen at any time, so it helps to know what urgent care clinics are open during the holidays. Several factors play a role in why urgent cares are closed on holidays, despite hours typically saying clinics are open every day of the year. Paying employees on a day that might see a low patient turnout can impact a clinic’s profits, while staffing could also be short as employees take the day off to spend time with their families, according to the Journal of Urgent Care Medicine.