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FAIRFIELD, CA - JULY 23:  A McDonald's Egg McMuffin and hash browns are displayed at a McDonald's restaurant on July 23, 2015 in Fairfield, California.  McDonald's has been testing all-day breakfast menus at select locations in the U.S. and could offer it at all locations as early as October.  (Photo illustration by Justin Sullivan/Getty Images)
FAIRFIELD, CA - JULY 23:  A McDonald's Egg McMuffin and hash browns are displayed at a McDonald's restaurant on July 23, 2015 in Fairfield, California.  McDonald's has been testing all-day breakfast menus at select locations in the U.S. and could offer it at all locations as early as October.  (Photo illustration by Justin Sullivan/Getty Images)

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    McDonald's to offer all-day breakfast

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McDonald's to offer all-day breakfast

McDonald's announced that starting next month, customers can get their Egg McMuffins all day long. But will it help the company's slumping sales? CNN Money's Cristina Alesci reports.

McDonald's to offer all-day breakfast

McDonald's announced that starting next month, customers can get their Egg McMuffins all day long. But will it help the company's slumping sales? CNN Money's Cristina Alesci reports.