Memorial Day 2024 Usps. Learn about the usps holiday service schedule, including mail delivery, post office hours, and shipping deadlines for domestic and international packages. Indiana — post offices will be closed on monday, may 27, 2024, in observance of memorial day.

Post offices to close in observance of memorial day. Memorial day, a federal holiday to remember the men and women who died while serving in the armed forces, is monday, may 29.