SAVANNAH, Ga. () — Every Friday the 13th comes with its own list of crazy facts and figures. Some people think it is an unlucky day. Others associate it with the popular horror movie franchise. No matter what you think of the day, Friday, June 13, 2025, is special for another reason: it is the only Friday the 13th this year.

Most years have at least 2 Friday the 13ths. A year that has only one happens once every 400 years or so. That is due to the Gregorian calendar, which has a repeating cycle of 400 years. Over that period of time, there are 171 years with exactly one Friday the 13th, 170 years with two and 59 years with three.

Another fun Gregorian calendar/Friday the 13th fact: although there is always at least one Friday the 13th per calendar year, it can be as long as 14 months between two Friday the 13ths.

And if you’re wondering why Friday the 13 is known as an unlucky day, it traces back to Scandinavian gods. An old tale says the god of mischief disrupted a dinner party of 12 other god.

Of course, there are those pesky movies too.