2018 is a common year that started on Monday in the Gregorian calendar.
| Date | Event(s) | |
|---|---|---|
| January 1 | "Krabby Patty Creature Feature" and "Teacher's Pests" premiered in Israel. | |
| January 2 | "Squid Noir" and "Scavenger Pants" premiered in Israel. | |
| January 5 | "Squid Noir" and "Scavenger Pants" premiered in Canada. "Feral Friends" and "Don't Wake Patrick" premiered in South Korea. | |
| January 12 | "Cave Dwelling Sponge" and "The Clam Whisperer" premiered in South Korea. | |
| January 15 | "No Pictures Please" premiered in Latin America. | |
| January 16 | "Stuck on the Roof" premiered in Latin America. | |
| January 17 | "Krabby Patty Creature Feature" premiered in Latin America. "There's a Sponge in My Soup" premiered in Turkey. | |
| January 18 | "Teacher's Pests" premiered in Latin America. | |
| January 19 | "Spot Returns" and "The Check-Up" premiered in South Korea. | |
| January 22 | "The Incredible Shrinking Sponge" and "Sportz?" premiered in Norway, Sweden, and Southeast Asia. | |
| January 23 | "No Pictures Please" and "Stuck on the Roof" premiered in Norway and Sweden. "Patrick's Coupon" and "Out of the Picture" premiered in Southeast Asia. | |
| January 24 | "Krabby Patty Creature Feature" and "Teacher's Pests" premiered in Norway and Sweden. "Feral Friends" and "Don't Wake Patrick" premiered in Southeast Asia. | |
| January 25 | "Squid Noir" and "Scavenger Pants" premiered in Norway and Sweden. "Cave Dwelling Sponge" and "The Clam Whisperer" premiered in Southeast Asia. | |
| January 26 | "Spin the Bottle" and "There's a Sponge in My Soup" premiered in South Korea. "Spot Returns" and "The Check-Up" premiered in Southeast Asia. | |
| February 2 | "Man Ray Returns" and "Larry the Floor Manager" premiered in South Korea. | |
| February 4 | "Cave Dwelling Sponge" and "The Clam Whisperer" premiered in Russia. | |
| February 6 | The SpongeBob Movie Collection (Blu-Ray) was released. | |
| February 9 | "No Pictures Please" and "Stuck on the Roof" premiered in South Korea. | |
| February 10 | "The Incredible Shrinking Sponge" and "Sportz?" premiered in Canada. | |
| February 11 | "Spot Returns" and "The Check-Up" premiered in Russia. | |
| February 12 | "Chatterbox Gary" and "Don't Feed the Clowns" premiered. "Feral Friends" premiered in Germany, Austria, and Switzerland. "Extreme Spots", "Squirrel Record", "Patrick-Man!", and "Gary's New Toy" premiered in Albania. | |
| February 13 | "Drive Happy" premiered. "Don't Wake Patrick" premiered in Germany, Austria, and Switzerland. "License to Milkshake", "Squid Baby", "Little Yellow Book", and "Bumper to Bumper" premiered in Albania. | |
| February 14 | "Old Man Patrick" premiered. "The Clam Whisperer" premiered in Germany. "Cave Dwelling Sponge" premiered in Austria and Switzerland. "Eek, an Urchin!", "Squid Defense", "Jailbreak!", and "Evil Spatula" premiered in Albania. | |
| February 15 | "Fun-Sized Friends" premiered. "Cave Dwelling Sponge" premiered in Germany. "Spot Returns" premiered in Austria and Switzerland. | |
| February 16 | "Grandmum's the Word" premiered. "Spot Returns" premiered in Germany. "Krabby Patty Creature Feature" and "Teacher's Pests" premiered in South Korea. "Don't Feed the Clowns" premiered in Turkey. | |
| February 18 | "Spin the Bottle" and "There's a Sponge in My Soup" premiered in Russia. | |
| February 19 | "The Check-Up" premiered in Germany. "The Clam Whisperer" premiered in Austria and Switzerland. | |
| February 20 | "Spin the Bottle" premiered in Germany, Austria, and Switzerland. | |
| February 21 | "There's a Sponge in My Soup" premiered in Germany, Austria, and Switzerland. | |
| February 22 | "Larry the Floor Manager" premiered in Germany, Austria, and Switzerland. | |
| February 23 | "Man Ray Returns" premiered in Germany, Austria, and Switzerland. "Don't Feed the Clowns" premiered in Latin America. | |
| February 25 | "Man Ray Returns" and "Larry the Floor Manager" premiered in Russia. | |
| March 5 | "Spin the Bottle" and "There's a Sponge in My Soup" premiered in the UK. | |
| March 6 | "No Pictures Please" premiered in the UK. | |
| March 7 | "Stuck on the Roof" premiered in the UK. | |
| March 8 | "Krabby Patty Creature Feature" premiered in the UK. | |
| March 9 | "Doodle Dimension" premiered. "Teacher's Pests" premiered in the UK. | |
| March 12 | "Squid Noir" premiered in the UK. "There's a Sponge in My Soup" premiered in Poland. | |
| March 13 | "Scavenger Pants" premiered in the UK. | |
| March 14 | "Cuddle E. Hugs" premiered in the UK. | |
| March 15 | "Pat the Horse" premiered in the UK. | |
| March 16 | "Moving Bubble Bass" premiered. "Chatterbox Gary" premiered in the UK. "Don't Feed the Clowns" premiered in Russia, Greece, and Southeast Asia. | |
| March 19 | "Don't Feed the Clowns" premiered in the UK. "No Pictures Please" and "Stuck on the Roof" premiered in Turkey, Iberia, and Greece. | |
| March 20 | "Drive Happy" premiered in the UK. "Krabby Patty Creature Feature" and "Teacher's Pests" premiered in Turkey, Iberia, and Greece. | |
| March 21 | "Old Man Patrick" premiered in the UK. "Sanitation Insanity" and "Bunny Hunt" premiered in Turkey and Iberia. "Squid Noir" and "Scavenger Pants" premiered in Greece. | |
| March 22 | "Fun-Sized Friends" premiered in the UK. "Squid Noir" and "Scavenger Pants" premiered in Turkey and Iberia. "Cuddle E. Hugs" and "Pat the Horse" premiered in Greece. | |
| March 23 | "Grandmum's the Word" premiered in the UK. "Cuddle E. Hugs" and "Pat the Horse" premiered in Turkey. "Chatterbox Gary" premiered in Greece. | |
| March 25 | "Squid Noir", "Scavenger Pants", "Cuddle E. Hugs", "Pat the Horse", and "Chatterbox Gary" premiered in Latin America. | |
| March 26 | "Chatterbox Gary" premiered in Turkey. "Cuddle E. Hugs" and "Pat the Horse" premiered in Iberia. "Drive Happy" and "Old Man Patrick" premiered in Greece. | |
| March 27 | "Chatterbox Gary" and "Don't Feed the Clowns" premiered in Iberia. "Fun-Sized Friends" and "Grandmum's the Word" premiered in Greece. "Drive Happy" and "Old Man Patrick" premiered in Turkey. | |
| March 28 | "Drive Happy" and "Old Man Patrick" premiered in Iberia. "Fun-Sized Friends" and "Grandmum's the Word" premiered in Turkey. | |
| March 30 | "Bunny Hunt" premiered. | |
| April 6 | "High Sea Diving" premiered. | |
| April 7 | "The Incredible Shrinking Sponge", "Sportz?", "Man Ray Returns", and "Larry the Floor Manager" premiered in France. "Whirly Brains" and "Mermaid Pants" premiered in Japan. | |
| April 9 | "No Pictures Please" premiered in Germany, Austria, and Switzerland. "Man Ray Returns" and "Larry the Floor Manager" premiered in Eastern Europe. | |
| April 10 | "Stuck on the Roof" premiered in Germany, Austria, and Switzerland. "The Legend of Boo-Kini Bottom" premiered in Eastern Europe. | |
| April 11 | "Krabby Patty Creature Feature" premiered in Germany, Austria, and Switzerland. "No Pictures Please" and "Stuck on the Roof" premiered in Eastern Europe. | |
| April 12 | "Teacher's Pests" premiered in Germany, Austria, Switzerland, and Eastern Europe. "Krabby Patty Creature Feature" premiered in Eastern Europe. | |
| April 13 | "Bottle Burglars" premiered. "Sanitation Insanity" premiered in Germany, Austria, Switzerland, and Eastern Europe. | |
| April 14 | "No Pictures Please", "Stuck on the Roof", "Krabby Patty Creature Feature", and "Teacher's Pests" premiered in France. "Unreal Estate" and "Code Yellow" premiered in Japan. | |
| April 15 | Ronald Lee Ermey, who guest voiced the Warden in "The Inmates of Summer", dies. | |
| April 16 | "Bunny Hunt" premiered in Germany, Austria, Switzerland, Romania and Eastern Europe. | |
| April 17 | "Squid Noir" premiered in Germany, Austria, and Switzerland. "Scavenger Pants" premiered in Eastern Europe. | |
| April 18 | "Scavenger Pants" premiered in Germany, Austria, and Switzerland. "Squid Noir" premiered in Eastern Europe. | |
| April 19 | "The Incredible Shrinking Sponge" premiered in Eastern Europe. | |
| April 20 | "There's a Sponge in My Soup" premiered in Eastern Europe. | |
| April 21 | "Sanitation Insanity", "Bunny Hunt", "Squid Noir", and "Scavenger Pants" premiered in France. "Mimic Madness" and "House Worming" premiered in Japan. | |
| April 22 | "Sanitation Insanity" and "Bunny Hunt" premiered in Israel. | |
| April 23 | "Cuddle E. Hugs" and "Pat the Horse" will premiere in Israel. | |
| April 24 | "Chatterbox Gary" and "Don't Feed the Clowns" will premiere in Israel. | |
| April 25 | "Drive Happy" and "Old Man Patrick" will premiere in Israel. | |
| April 26 | "Fun-Sized Friends" and "Grandmum's the Word" will premiere in Israel. | |
| April 28 | "Cuddle E. Hugs", "Pat the Horse", "Chatterbox Gary", and "Don't Feed the Clowns" will premiere in France. "Snooze You Lose" and "Krusty Katering" will premiere in Japan. | |
| April 29 | "Doodle Dimension" and "Moving Bubble Bass" will premiere in Israel. | |
| April 30 | "Chatterbox Gary" and "Don't Feed the Clowns" will premiere in Canada. "High Sea Diving" and "Bottle Burglars" will premiere in Israel. | |
| May 1 | "Drive Happy" and "Old Man Patrick" will premiere in Canada. | |
| May 2 | "Fun-Sized Friends" and "Grandmum's the Word" will premiere in Canada. | |
| May 3 | "Doodle Dimension" and "Moving Bubble Bass" will premiere in Canada. | |
| May 4 | "Sanitation Insanity" and "Bunny Hunt" will premiere in Canada. | |
| May 5 | "Drive Happy", "Old Man Patrick", "Fun-Sized Friends", and "Grandmum's the Word" will premiere in France. "SpongeBob's Place" and "Plankton Gets the Boot" will premiere in Japan. | |
| May 12 | "Life Insurance" and "Burst Your Bubble" will premiere in Japan. | |