what time does mail deliver on saturday depends on the shipping service and location, but for USPS, mail is generally delivered between 9 a.m. and 5 p.m. on Saturdays, similar to weekdays. However, exact delivery times may vary based on the type of service, the package’s destination, and local postal schedules. Priority Mail and Priority Mail Express packages are often delivered earlier in the day, while First-Class Mail and regular packages may arrive later. It’s also important to note that certain areas may experience delays during busy periods or holidays. Other carriers, such as UPS and FedEx, also offer Saturday deliveries, often with specific services and time frames based on the customer’s needs.