National Coffee Day is Thursday, September 29, and Dunkin’ Donuts will hail the holiday by raising a cup to its loyal guests with a coffee offer in celebration of the brand’s 66-year history of keeping people running with great coffee each and every day. Dunkin’ Donuts today announced that on National Coffee Day, guests can enjoy any medium-sized cup of the brand’s signature hot coffee for the special price of 66 cents at participating Dunkin’ Donuts restaurants nationwide.

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