When Is National William Day?

The internet history of William Day

23rd of February is National William Day

  First detected on the 23rd of February 2017

  2,302 tweets


Is It William Day Today?

It's William day on the 23rd of February.

The most recent detection of references to William Day was 2 years, 7 months ago.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up on the 23rd of February. In total we detected 80 total unique days being shared such as Margarita Day which had 13,553 people talking about it, or William Day having 2,302 tweets.


How Is The Date For William Day Calculated?

The day shown for 'National William Day' is based off how much chitter-chatter and buzz there was on Feb. 23, 2017 across social media making references to 'William 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: Chili, Toast or Marg Day. This crowdsourcing of data method to assess the National William 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 William Day

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

Can I Register William Day?

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


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


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

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

We have also detected mentions of William day on;



Get The Badge

National William Day

It's William Day
On February 23rd


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National William Day, on the 23rd of February

Other Days

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National Donut Day
National Puppy Day
National Girlfriend Day
National Best-Friend Day
National Single Day
National Daughter Day
National Boyfriend Day
National Pug Day
National Daughters Day
National Pet Day
National Pancake Day
National Hug Day
National Hot-Dog Day


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