The service hours of McDonald's breakfast vary according to the location and business model of the store. Generally speaking, breakfast in most McDonald's restaurants is served from 5 am to 10: 30. During this period, customers can enjoy various delicious breakfasts, such as hamburgers, potato cakes and hot drinks.

It should be noted that in some special locations, such as McDonald's restaurants in high-speed railway station or near the airport, the breakfast service hours may be adjusted. In addition, the supply of breakfast may also be affected by factors such as holidays, special events or store decoration, so it is recommended to know the specific breakfast service time and menu content through official channels or store announcements before going to McDonald's.