Corporate minimum hours of operation require all IHOPs to open by 7 a.m. According to the official IHOP website, most of the restaurants are independent franchisees, so their opening hours vary. Information about individual restaurants is available through the location finder on the company's website.
Toluca Lake, Calif., a suburb of Los Angeles, was the location of the original International House of Pancakes. It opened on July 7, 1958. The "IHOP" acronym was developed 15 years later. By the end of 2011, IHOP had restaurants in every state of the USA and the District of Columbia. There are also IHOP restaurants in Canada, Guatemala, Mexico, Puerto Rico and the U.S. Virgin Islands.