| Slabovia Day | January 14th | First Constitution Adopted |
| Jack the Riper Day | February 1st | |
| Mars Day | February 2nd | Slabovia stakes first claim on Mars in 1999 |
| Slabovian Rules Chess Day | February 9th |
| All Numpties Day | February 25th | King George's Birthday |
| Arms Day | February 27th | Coat of Arms Adopted |
| Justine Day | March 2nd | Queen Justine Coronated |
| Moneca Day | March 4th | Queen Moneca Self-Corontation |
| Neon Turtle Day | March 5th | Commemmorating the rise of the Neon Turtles |
| Shit Umbrella Day | March 24th | |
| Evan & Wu Day | April 1st | |
| Black Friday | April 19th | The day they changed the Coca-Cola Formula in 1985 (without even checking with us) |
| Bartholomew Festival Day | May 1st | |
| St. John Day | May 20th | |
| Scaffolding Day | May 24th | |
| Gun Tape Fixes Everything Day | June 29th | |
| Old Slabovia Day | July 1st | |
| Nikola Tesla Day | July 9th | |
| Hoover Day | August 10th | |
| George Day | September 5th | King George Coronated |
| Ask Not What Your Country Can Do For You Day | September 19th | |
| Monty Python Day | October 5th | |
| Slabovian New Year's | October 12th | |
| Lightbulb Day | Novermber 1st | |
| Sadie Hawkins Day | November 2nd | |
| Independence Day | November 26th | |
| King Penny Day | November 27th | King Penny's Birthday |
| International Day of NOSE | December 26th | |
| Dead Paeple Appreciation Day | December 27th | |