Egg McMuffin at 2 p.m.? Soon, says McDonalds

A McDonald's store displays a sign informing customers that they now serve breakfast all day long, at their location in Encinitas, California August 13, 2015. REUTERS/Mike Blake

LOS ANGELES - McDonald's Corp will begin offering all-day breakfast across the United States on Oct. 6, a widely expected action that the company and investors hope will help reverse slumping sales and traffic at the fast-food chain.

Many U.S. consumers like to eat breakfast foods at any hour of the day. McDonald's is the top choice for those so-called "Breakfastarians," according to a recent survey from YouGov BrandIndex, a brand perception research service.

The all-day breakfast menu will include hotcakes, yogurt parfaits, oatmeal, hash browns, sausage burritos and either McMuffin sandwiches or biscuit sandwiches, the company said.

Some franchisees worry that expanding breakfast service could complicate operations and slow service at a time when company executives have vowed to simplify and streamline the chain's menu.

To that end, McDonald's said that regional operators can decide whether to cut certain menu items based on local customer preferences.

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