Note to parents: Leap day kids don't find the "You don't have a birthday this year, so no presents," joke funny. It's not a fictitious date, so Feb. 29 is used on all legal documents such as ...

A lot of annoying little hacks are needed to keep our integer-based calendar in sync with a floating-point universe, and the big one, leap day, passed us by this week. Aside from the ignominy of a ...

Check out these kid-friendly events to commemorate the occasion. Leap Day comes around once every four years on the last day in February. Although Leap Day is not an official holiday, it’s still a fun ...