Usps Holidays 2024 No Mail Delivery Usps. Maybe now you’re wondering, “when does the post office close?” there are a handful of usps holidays sprinkled throughout the year, and the mail service and post office locations. If a holiday falls on a saturday, for most usps employees, the preceding friday will be treated as.

Mail will not be delivered, unless it is a priority mail express package that has paid for holiday service. Severe weather conditions across the u.s.