It's February in a leap year: Time to start thinking about how to spend your extra day. And Leap Day has long been a day that some couples decide to start the rest of their lives together. It's more ...

Saturday is Feb. 29, a.k.a. leap day, a date that appears on our calendars only once every four years. Leap day is added because it takes the Earth 365 days, five hours, 48 minutes and 45 seconds to ...