is saturday a business day usps

is saturday a business day usps depends on the type of service and the specific postal location. USPS delivers mail on Saturdays for most services, including Priority Mail, First-Class Mail, and certain other services. While Saturday is generally considered a business day for USPS, mail delivery on Saturdays may not be as frequent as during the week, and some services, such as Express Mail, may have different delivery times. It’s advisable to check USPS’s holiday schedule or service guidelines for any specific exceptions.