Atheist Day is celebrated on March 23rd. Use #AtheistDay to help other atheists find community and to normalize atheism. On this day, we recognize the struggle of atheists to live authentic lives in many parts of the world; the fight to openly affirm one’s atheism, and the fear of intolerant governments, mobs, and religious zealots. "Atheist Republic". I plan to have a beer with friends and toast our freedom from religion.