It's National Tell A Joke Day on August 17th.
More on Tell A Joke Day and the other days on the 17th below.
We detected 913 references to national Tell A Joke day on 17th the August. There were also a total of 69 other national days mentioned including: Thrift Shop, Rum, Nonprofit and Black Cat Appreciation Day.
The day shown for 'National Tell A Joke Day' is shown as we detected that day mentioned the most out of all the references to national days there were on August the 17th across social media. 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. This crowdsourcing of data method to assess the National Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!