when does usps mail deliver

when does usps mail deliver is typically determined by the shipping method selected. USPS delivers most mail during regular business hours from Monday to Saturday, with exceptions for certain holidays. Delivery times for services like Priority Mail and First-Class Mail usually range from 1 to 3 business days, while services like Priority Mail Express guarantee next-day or 2-day delivery. USPS also offers Sunday delivery for some services, like Priority Mail Express, but only in select areas.