when does mail come on saturday depends on the delivery service and location. For USPS, regular mail delivery occurs on Saturdays, with most packages arriving by the afternoon or early evening. However, the exact delivery time can vary depending on factors such as the service used, distance, and the local USPS office’s schedule. USPS also offers expedited services like Priority Mail Express for faster weekend deliveries, which are typically delivered earlier in the day. If you’re expecting an important package, checking the delivery status online or contacting your local post office can help you know the expected time frame for mail delivery on Saturdays.