When Is National Pizza Party Day?


National Pizza Party Day is on the 20th of May with 6,120 tweets.

More on Pizza Party Day below.



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About Pizza Party Day

Is It Pizza Party Day Today?

It's Pizza Party day on the 20th of May.

Pizza Party Day' is by our calculation on: May the 20th. The first time we detected Pizza Party Day was the 1st of May 2015 and the most recent detection of references to Pizza Party Day was 4 months ago.

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

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 20th of May. In total we detected 119 total unique days being shared such as Send A Nude Day which had 5,636 people talking about it, or Pizza Party Day having 2,930 tweets. A random sample of which are shown below.


National days on the 20th of May

National Pizza Party Day, on the 20th of May

How Is The Date For Pizza Party Day Calculated?

The day shown for 'National Pizza Party Day' is based off how much chitter-chatter and buzz there was on May 20, 2016 across social media making references to 'Pizza Party 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: Nude, Send Nudes or Nudes Day. This crowdsourcing of data method to assess the National Pizza Party 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 Pizza Party Day

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

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National Pizza Party Day

It's Pizza Party Day
On May 20th

Can I Register Pizza Party Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Pizza Party 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 Pizza Party 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.

teenagers sharing national days on social media

Hang On, It Was National Pizza Party Day Already This Year..!?

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

We have also detected mentions of Pizza Party day on;



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For people who wish to promote National Pizza Party Day, we've put together the following resources.
See also: How does Pizza Party affect the share price of Apple, Facebook, Microsoft?
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