Happy Leap Day!

Happy Leap Day, GeekDad Readers! Now, most of you already know that every four years or so we add an extra day to the calendar, resulting in a Leap Day on February 29th. Does that “or so” make you a little uneasy? Well, since this is GeekDad, let’s make things a little more precise and […]
February 29 2012
February 29, 2012

Happy Leap Day, GeekDad Readers!

Now, most of you already know that every four years or so we add an extra day to the calendar, resulting in a Leap Day on February 29th. Does that "or so" make you a little uneasy? Well, since this is GeekDad, let's make things a little more precise and borrow the pseudo-code from the Wikipedia page:
``

if year modulo 4 is 0 then
if year modulo 100 is 0 then
if year modulo 400 is 0 then
is_leap_year
else
not_leap_year
else
is_leap_year
else
not_leap_year

Did that make things clearer? Umm, no?

Well, let's try this then: YouTube user extraordinaire, CGPGrey, has posted a video that clearly explains just how difficult it is to create an accurate calendar, and why that leads to the need for a Leap Year:

And as mentioned in the comments for the CGPGrey video, check out the Minute Physics video on the same subject....