LEAP YEAR AND MARRIAGE? Bizarrely, leap day comes with lore about women popping the marriage question to men. It was mostly benign fun, but it came with a bite that reinforced gender roles. There’s distant European folklore. One story places.
The math is mind-boggling in a layperson sort of way and down to fractions of days and minutes. There's even a leap second occasionally, but there's no hullabaloo when that happens.