Last Posting Dates For Christmas 2024 Usps. Everyone deserves to have a day off and relax in a cozy christmas atmosphere, which is why christmas day is a federal holiday. If a holiday falls on a saturday or sunday, usps generally observes it on the preceding friday or following monday,.

Here are the recommended deadlines: Post office will be closed on tuesday, april 14th & wednesday, april 15th in observance of labor day, and will resume regular business hours on thursday, april 16th abc.