When Is National Moon Day?

The internet history of Moon Day

20th of July is National Moon Day

  First detected on the 20th of July 2015

  5,123 tweets


Is It Moon Day Today?

It's Moon day on the 20th of July.

The most recent detection of references to Moon Day was 2 weeks ago.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up on the 20th of July. In total we detected 61 total unique days being shared such as Hot Dog Day which had 1,887 people talking about it, or Moon Day having 886 tweets.


How Is The Date For Moon Day Calculated?

The day shown for 'National Moon Day' is based off how much chitter-chatter and buzz there was on July 20, 2017 across social media making references to 'Moon 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: Lollipop, Hotdog or Gun Violence Awareness Day. This crowdsourcing of data method to assess the National Moon 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 Moon Day

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

Can I Register Moon Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Moon 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 Moon 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 Moon day to show how people feel about Moon. See if people like Moon here.
We're detecting how Moon affects other things more widely than just being a celebrated day. See how Moon affects company share prices.


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

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

We have also detected mentions of Moon day on;



Get The Badge

National Moon Day

It's Moon Day
On July 20th


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National Moon Day, on the 20th of July

Other Days

National Dog Day
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


For any media or sponsorship queries, please contact info@whatnationaldayisit.com
For people who wish to promote National Moon Day, we've put together the following resources.
See also: How does Moon affect the share price of Apple, Facebook, Microsoft?
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