This year's Pi Day is even more special than you know

March 13, 2015 3:00 PM

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That is, today's date is 3/14/15 (at least in the US and a few other countries that write dates the same way), which matches up nicely with the first five digits of pi, the ratio of every circle's circumference to its diameter: 3.1415.

What's more, at precisely 9:26:53 am, we'll have Pi Second: an even more magical time at which the date and time match up with the first 10 digits of pi, 3.141592653.

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