While brick-and-mortar facilities are closed, some Post Office services are available online 24/7, including on holidays. With a USPS.com account, you can order stamps, print shipping labels, order boxes, and other mail supplies and request package pickups. Stamps are also sold at most major supermarkets, pharmacies and office supply stores, which are open on some federal holidays.
Other major delivery companies have their own schedules and operate partially or in full on some holidays. UPS and FedEx are not delivering on Memorial Day 2020 except through their services for urgent and critical deliveries. UPS Stores will be closed; some FedEx Office retail locations will open with limited hours.
Postal delivery is considered an essential service during the coronavirus outbreak, and Post Offices continue to operate on regular working days, with accommodations for social distancing. You’ll find more information in the “AARP Answers” article on postal service and the pandemic.