Black Friday (shopping) Prime Days taking place in 2016 and 2017. Other companies followed with "Black Friday in July" deals which were as good as, or better than, those in November. For many years, retailers pushed opening times on Black Friday earlier and earlier, eventually reaching midnight, before opening on the evening of Thanksgiving. In 2009, Kmart opened at 7:00 a.m. on Thanksgiving, in order to allow shoppers to avoid Black Friday traffic and return home in time for dinner with their families. Two years later, a number of retailers began opening at 8:00 or 9:00 p.m., on what became derisively known as
Leap year starting on Friday share this characteristic. Leap years that begin on Friday, along with those that start on Sunday, occur most frequently: 15 out of the 97 (≈ 15.5%) total leap years in a 400-year cycle of the Gregorian calendar. Thus, the overall occurrence is thus 3.75% (15 out of 400). Like all leap year types, the one starting with 1 January on a Friday occurs exactly once in a 28-year cycle in the Julian calendar, i.e. in 3.57% of years. As the Julian calendar repeats after 28 years that means it will also repeat after 700 years, i.e. 25 cycles. The year's