It's National Anthem By My Day on December 1st.
More on Anthem By My Day and the other days on the 1st below.
We detected 221 references to national Anthem By My day on 1st the December. There were also a total of 27 other national days mentioned including: Big Time Rush, Christmas Lights, Anthem By My and Coming Out Day.
The day shown for 'National Anthem By My Day' is shown as we detected that day mentioned the most out of all the references to national days there were on December the 1st 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!