When Is National Math Pi Day?

About Math Pi Day

Is It Math Pi Day Today?

It's Math Pi day on the 13th of March.

Math Pi Day' is by our calculation on: March the 13th. The first time we detected Math Pi Day was the 13th of March 2015 and the most recent detection of references to Math Pi Day was 3 years, 9 months ago.

We're now tracking the sentiment around every mention of Math Pi day to show how people feel about Math Pi. See if people like Math Pi here.
We're detecting how Math Pi affects other things more widely than just being a celebrated day. See how Math Pi affects company share prices.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 13th of March. In total we detected 102 total unique days being shared such as Pi Day which had 511 people talking about it, or Cookie Day having 220 tweets. A random sample of which are shown below.

National days on the 13th of March

How Is The Date For Math Pi Day Calculated?

The day shown for 'National Math Pi Day' is based off how much chitter-chatter and buzz there was on March 13, 2015 across social media making references to 'Math Pi Day'. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day, including others such as: Geographic Photo of the, sleep or Sleep Day. This crowdsourcing of data method to assess the National Math Pi Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!

I'd Like To Promote National Math Pi Day

We've put together the following resources full of nifty tips on how to increase the reach of Math Pi Day. The resources include: graphs, badges, and resources on what steps to take to boost Math Pi Day's visibility.

Get The Badge

It's Math Pi Day
On March 13th

Can I Register Math Pi Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Math Pi day". We only aim to programatically reflect what 'National Day' it is based of what The Internet Says It Is. We believe this is much more fun as it reflects the nature of how the most amusing / interesting national days are often created organically and grow based off popular social trends and sharing, as such we don't add new days to our database unless they are organically observed on social media.

Is it National Math Pi Day Everywhere?

Yes? No.. Sort of | Maybe ¯\_(ツ)_/¯

What's really intersting is how whilst some National Days like National Daughters Day are seemingly celebrated internationally irrespective of geography, some very popular days (That often become the No. 1 National Day on our homepage) are in fact locally very specific and are offical holidays celebrated on a Country's national calendar. Take National Rambutan Day for instance, Rambutan is a popular Souteast Asian fruit and not seen so much in the UK, Europe or the USA. Some regionally specific trends subsequently become immensely popular internationally and worldwide, partly fuelled by widely shared 'National Days', National Pabebe Wave Day being one such example.

Hang On, It Was National Math Pi Day Already This Year..!?

Yes, this is strangely enough entirely possible. The date shown for National Math Pi Day can change, if for instance several hundred people tweeted about Math Pi Day in early April, then in May a few thousand people tweeted about Math Pi day, then the date shown for National Math Pi Day, could come up twice :D

We have also detected mentions of Math Pi day on;

mar 13th5

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