Wiktionary
leap years
n. (leap year English)
Wikipedia
Leap Years
Leap Years is a 2001 drama television series that aired on the Showtime cable network. The show was created by Ron Cowen and Daniel Lipman, who had created the American version of the series Queer as Folk. It followed a group of friends in New York City. Set in the main in 2001, the show was uniquely structured as a series of flashbacks to 1993 and flashforwards to the then-near future 2008.
Usage examples of "leap years".
More than that, I was two hundred light-years and five and a half leap years from civilization.
The dials counted days-not years, or months, or leap years, or movable feasts!
Just locked you in a padded cell, with a certificate signed by three doctors, and allowed you mail on alternate leap years.