Astronomical summer officially arrives in the Northern Hemisphere — amidst a heat wave — at 4:51 p.m. ET. It’s the earliest start to the season since 1796, thanks to quirks in the calendar.
leap year
Posted inNPR
Leap for joy! The creative ways NPR listeners are marking Feb. 29
We get a leap day only every four years. How will you spend it? Here’s some inspiration from people celebrating all sorts of personal milestones — and those who just want to enjoy their extra day.
Posted inNPR
Why do we leap day? We remind you (so you can forget for another 4 years)
Why do we have leap years, and what are we supposed to do — or not do — with our rare extra day? NPR’s Morning Edition spoke with experts in astronomy, history and economics to find out.


