what time does the usps deliver packages varies based on the service level, delivery type, and the specific route. For standard mail, USPS delivers between 9 AM and 5 PM on weekdays, but this can vary depending on local delivery schedules, mail volume, and weather conditions. Priority Mail and Priority Mail Express items are typically delivered earlier in the day, often by noon, while regular mail might be delivered later in the afternoon. For rural or remote areas, USPS may deliver later in the day, and deliveries can occasionally extend to early evening hours, especially during peak seasons like the holidays. USPS also delivers on Saturdays, although the delivery times are generally similar to weekdays, and Sunday deliveries are limited to specific services, such as Priority Mail Express. For accurate delivery windows, customers can track their packages using the USPS tracking number, which provides real-time updates on the status and location of the shipment.