According to the search results, "end of day" for FedEx refers to the time by which most drivers finish delivering packages for the day. The exact time varies depending on the service and location, but for commercial deliveries, it is usually around 5:00 PM or closing time, whichever comes first. For residential deliveries, it is usually until 8:00 PM, but it could be pushed to 9:00 PM or later. However, it is important to note that "end of day" does not necessarily mean the end of a drivers shift, and drivers may deliver packages later to ensure that guaranteed delivery services like Overnight or 2Day arrive on time. If a package is not delivered by the end of the day, FedExs response depends on the service selected by the customer.