When Is National Smile Day?


National Smile Day is on the 31st of May with 9,625 tweets.

More on Smile Day below.



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About Smile Day

Is It Smile Day Today?

It's Smile day on the 31st of May.

Smile Day' is by our calculation on: May the 31st. The first time we detected Smile Day was the 31st of March 2015 and the most recent detection of references to Smile Day was 2 months, 1 week ago.

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

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 31st of May. In total we detected 63 total unique days being shared such as Smile Day which had 3,807 people talking about it, or Donut Day having 3,085 tweets. A random sample of which are shown below.


National days on the 31st of May

National Smile Day, on the 31st of May

How Is The Date For Smile Day Calculated?

The day shown for 'National Smile Day' is based off how much chitter-chatter and buzz there was on May 31, 2018 across social media making references to 'Smile 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: Gun Violence Awareness, Doughnut or Macaroon Day. This crowdsourcing of data method to assess the National Smile 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 Smile Day

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

Get The Badge

National Smile Day

It's Smile Day
On May 31st

Can I Register Smile Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Smile 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 Smile 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 Smile Day Already This Year..!?

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

We have also detected mentions of Smile day on;



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