If you have a Leap Year Birthday…when do you celebrate? If you were born on February 29th, would you celebrate the 28th or March 1st? I would feel sort of short changed not seeing my birthday on the calendar every year. Or, are Leap Year Birthdays just lucky to not age like the rest of us. You could count your birthday only every 4 years. Works for me! Even if you were not born on February 29th, if you were born in a leap year…really, should you celebrate your birthday a day later? Is that your true birthday? This just messes everything up! So here’s the real deal on Leap Year from Time And Date.com.