Wendy's serves breakfast typically from 6:30 AM until 10:30 AM. These hours may vary slightly depending on the location, but most Wendy's stop serving breakfast by 10:30 AM, after which they switch to their regular menu. Delivery breakfast service usually starts later, around 8:00 AM, and the mobile app may have a cutoff around 10:15 AM. It is advisable to check the specific hours for the nearest Wendy's to be sure, as some locations may have slight differences in breakfast serving times, especially on holidays or weekends.