World Party Day, also referred to as P-Day, is an annual global celebration that occurs on April 3. This event focuses on creating a better reality for all the people in the world.
The first Sunday in April is traditional celebration of Geologist Day. This professional holiday was established in the Soviet Union in 1980, but after its collapse the tradition to celebrate Geologist Day wasn't forgotten. Nowadays it's a professional holiday of geologist in Russia, Ukraine, Belarus Kyrgyzstan and Kazakhstan.