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Leap Year

When do you celebrate a leap year birthday?

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March 02, 2012 9:06PM

Most people believe that Leaplings (people born on Leap Year Day) have the option of celebrating either on February 28th or March 1st. Often, Leaplings will prefer the most convenient, i.e., on a Friday versus a Thursday. We also believe that our birthday exists, so quit the joke about not having a birthday (it was old by our 9th calendar year). And we do deserve extra special birthday parties in real Leap Years. In reality, there are two analytical options to determine the correct date:

  1. Adding 6 hours to your birth hour every year. For example, if you were born at 8pm on February 29th, the following year would be 2am on the following day, or March 1st. However, this means that most non-Leaplings born after noon are celebrating the wrong birthdays during the last two years of a cycle.
  2. Using a known reference point, e.g., on the last day of February (my preferred method).