is saturday a business day for usps

is saturday a business day for usps depends on the type of mail service and location. USPS considers Saturday a business day for delivery purposes, meaning that most mail, including First-Class and Priority Mail, can be delivered. However, services like USPS Express Mail may have guaranteed Saturday delivery only in certain areas. Post offices may have limited hours or be closed, so in-person services can be restricted. Understanding whether Saturday counts as a USPS business day is essential for calculating delivery timelines and scheduling important shipments, especially when working within tight deadlines.