Timeline:April

April
	1	2	3	4	5	6	7	8	9	10
	11	12	13	14	15	16	17	18	19	20
	21	22	23	24	25	26	27	28	29	30
Jan		Feb		Mar		Apr		May		Jun
Jul		Aug		Sep		Oct		Nov		Dec

April is the fourth month of the year.

April 1 is the 91st day of the year (92nd in leap years) in the Gregorian calendar. There are 274 days remaining. It is also April Fool's Day.

• 2000: "Fools in April" and "Neptune's Spatula" premiered.
• 2006: "Krusty Towers" and "Mrs. Puff, You're Fired" premiered.
• 2007: The series switched to a TV-Y7 rating.
• 2010: Exposed!: The Ultimate Box Set was released in Australia.
• 2013: "A SquarePants Family Vacation" premiered in Greece.
• 2015:
  • "Jailbreak!" premiered in Italy and Central & Eastern Europe.
  • "Evil Spatula" premiered in Central & Eastern Europe.
• 2017: "Goodbye, Krabby Patty?" premiered in France.
• 2019: "Patnocchio" and "ChefBob" premiered in Ukraine.

April 2 is the 92nd day of the year (93rd in leap years) in the Gregorian calendar. There are 273 days remaining.

• 1956: Martin Olson, the portrayer of The Chief, was born.
• 2005: "Nickelodeon Blimp" premiered.
• 2011:
  • "Sentimental Sponge" premiered.
  • "Greasy Buffoons" and "Model Sponge" premiered in Poland.
• 2012: "Restraining SpongeBob" premiered.
• 2013: "Patrick's Staycation" and "Walking the Plankton" premiered in Greece.
• 2014: "SpongeBob You're Fired" premiered in the Philippines.
• 2015: The SpongeBob Movie: Sponge Out of Water was released in Australia and New Zealand.

April 3 is the 93rd day of the year (94th in leap years) in the Gregorian calendar. There are 272 days remaining.

• 1958: Alec Baldwin, the voice of Dennis, was born.
• 1968: Sebastian Bach, the voice of Triton, was born.
• 2002: "Help Wanted" and "Reef Blower" premiered in Japan, marking the debut of SpongeBob SquarePants in that country.
• 2004: "Krabby Land," "The Camping Episode" and "Plankton's Plan" premiered.
• 2012: "Glove World R.I.P." premiered.
• 2013: "Mooncation" and "Mr. Krabs Takes a Vacation" premiered in Greece.
• 2017:
  • "Whirly Brains" premiered in Greece and Latin America.
  • "Mermaid Pants" premiered in Greece.
  • "Snooze You Lose" premiered in Iberia.
  • "House Worming" premiered in the Netherlands.

April 4 is the 94th day of the year (95th in leap years) in the Gregorian calendar. There are 271 days remaining.

• 2012: "Home Sweet Rubble" premiered.
• 2013: "Mermaid Man Begins" and "Plankton's Good Eye" premiered in Greece.
• 2015: The SpongeBob Movie: Sponge Out of Water was released in the Philippines.
• 2017:
  • "Sandy's Nutmare" and "Bulletin Board" premiered in the UK and Ireland.
  • "Mermaid Pants" premiered in Iberia and Latin America.
  • "Mimic Madness" and "House Worming" premiered in Greece.
  • "Snooze You Lose" premiered in the Netherlands.

April 5 is the 95th day of the year (96th in leap years) in the Gregorian calendar. There are 270 days remaining.

• 2005: The SpongeBob Saves the Day book was released.
• 2007: Remodeling premiered.
• 2012: "Fiasco!" premiered.
• 2013: "Barnacle Face" and "Pet Sitter Pat" premiered in Greece.
• 2017:
  • "Whirly Brains" premiered in Iberia.
  • "Mimic Madness" premiered in Latin America.
  • "Snooze You Lose" and "Krusty Katering" premiered in Greece.
  • "Krusty Katering" premiered in the Netherlands.
• 2019: "FarmerBob" premiered in Russia.

April 6 is the 96th day of the year (97th in leap years) in the Gregorian calendar. There are 269 days remaining.

• 2005: The SpongeBob SquarePants Movie was released in theatres in the Philippines.
• 2010:
  • "Rodeo Daze" premiered in Japan.
  • SpongeBob, Soccer Star! was released.
• 2012: "Free Samples" premiered.
• 2015: "Patrick-Man!" premiered in Central & Eastern Europe.
• 2017:
  • "House Worming" premiered in Iberia and Latin America.
  • "SpongeBob's Place" and "Plankton Gets the Boot" premiered in Greece.
  • "SpongeBob's Place" premiered in the Netherlands.
• 2018: "High Sea Diving" premiered.
• 2019:
  • "The Nitwitting" premiered in Latin America.
  • "The Grill is Gone," "The Night Patty," "Bubbletown," and "Girls' Night Out" premiered in France.
  • "Drive Happy" and "Old Man Patrick" premiered in Japan.

April 7 is the 97th day of the year (98th in leap years) in the Gregorian calendar. There are 268 days remaining.

• 2015: "Gary's New Toy" premiered in Central & Eastern Europe.
• 2016: "SpongeBob LongPants" and "Larry's Gym" premiered in Latin America.
• 2017:
  • "Mimic Madness" premiered in Iberia.
  • "Snooze You Lose" premiered in Latin America.
  • "Plankton Gets the Boot" premiered in the Netherlands.
  • "Life Insurance" and "Burst Your Bubble" premiered in Greece.
• 2018:
  • "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 8 is the 98th day of the year (99th in leap years) in the Gregorian calendar. There are 267 days remaining.

• 1964: Biz Markie, the voice of Kenny the Cat, was born
• 2000: "Hooky" and "Mermaid Man and Barnacle Boy II" premiered.
• 2005: The SpongeBob SquarePants Movie was released in theatres in South Africa.
• 2013: "House Sittin' for Sandy" and "Smoothe Jazz at Bikini Bottom" premiered in Greece.
• 2015:
  • SpongeBob Comics No. 43 was released.
  • The SpongeBob Movie: Sponge Out of Water was released in Indonesia.
  • "License to Milkshake" premiered in Central & Eastern Europe.
• 2017:
  • "Mutiny on the Krusty", "The Whole Tooth", "Whirly Brains", and "Mermaid Pants" premiered in France.
  • "Extreme Spots" and "Squirrel Record" premiered in Japan.

April 9 is the 99th day of the year (100th in leap years) in the Gregorian calendar. There are 266 days remaining.

• 1954: Dennis Quaid, the voice of Grandpa Redbeard, was born.
• 2012: "InSPONGEiac" premiered.
• 2013: "Bubble Troubles" and "The Way of the Sponge" premiered in Greece.
• 2014: SpongeBob Comics No. 31 was released.
• 2015:
  • The SpongeBob Movie: Sponge Out of Water was released in Thailand.
  • "Squid Baby" premiered in Central & Eastern Europe.
• 2017: "SpongeBob's Place" premiered in Russia.
• 2018:
  • "Cuddle E. Hugs" and "Pat the Horse" premiered in Norway and Sweden.
  • "No Pictures Please" premiered in Germany, Austria, and Switzerland.
  • "Man Ray Returns" and "Larry the Floor Manager" premiered in Central & Eastern Europe.

April 10 is the 100th day of the year (101th in leap years) in the Gregorian calendar. There are 265 days remaining.

• 2012: "Treats!" premiered.
• 2013:
  • SpongeBob Comics No. 19 was released.
  • "The Krabby Patty That Ate Bikini Bottom" and "Bubble Buddy Returns" premiered in Greece.
• 2015:
  • The SpongeBob Movie: Sponge Out of Water was released in Estonia.
  • "Eek, an Urchin!" premiered in Central & Eastern Europe.
• 2016: "SpongeBob LongPants" premiered in Russia.
• 2018:
  • "Chatterbox Gary" and "Don't Feed the Clowns" premiered in Norway and Sweden.
  • "Stuck on the Roof" premiered in Germany, Austria, and Switzerland.
  • "The Legend of Boo-Kini Bottom" premiered in Central & Eastern Europe.

April 11 is the 101st day of the year (102nd in leap years) in the Gregorian calendar. There are 264 days remaining.

• 2003: Jimmy Neutron's Nicktoon Blast opened.
• 2007: "Squidtastic Voyage" premiered in Canada.
• 2008: "Pest of the West" premiered.
• 2012:
  • "Squiditis" premiered.
  • SpongeBob SquarePants becomes the longest running Nickelodeon cartoon, surpassing Rugrats. 
  • SpongeBob Comics No. 8 was released.
• 2018:
  • "Drive Happy" and "Old Man Patrick" premiered in Norway and Sweden.
  • "Krabby Patty Creature Feature" premiered in Germany, Austria, and Switzerland.
  • "No Pictures Please" and "Stuck on the Roof" premiered in Central & Eastern Europe.

April 12 is the 102nd day of the year (103rd in leap years) in the Gregorian calendar. There are 263 days remaining.

• 1932: Tiny Tim, the singer of Livin' in the Sunlight, Lovin' in the Moonlight, was born.
• 2005: The book, "SpongeBob SquarePants: The Movie" was released.
• 2007: "Can't Swim" premiered.
• 2011: SpongeBob SquigglePants was released on Wii.
• 2012: "For Here or to Go" premiered.
• 2013: Plankton's Diary: Karen premiered.
• 2017: SpongeBob Comics No. 67 was released.
• 2018:
  • "Fun-Sized Friends" and "Grandmum's the Word" premiered in Norway and Sweden.
  • "Teacher's Pests" premiered in Germany, Austria, Switzerland, and Central & Eastern Europe.
  • "Krabby Patty Creature Feature" premiered in Central & Eastern Europe.
• 2019: "The Ballad of Filthy Muck" premiered in Russia.

April 13 is the 103rd day of the year (104th in leap years) in the Gregorian calendar. There are 262 days remaining.

• 2004: Crime and Funishment, also known as "Bikini Bottom's Most Wanted," was released.
• 2007: "Friend or Foe" premiered.
• 2011: SpongeBob Comics No. 2 was released.
• 2012: "Karen 2.0" premiered.
• 2016: SpongeBob Comics No. 55 was released.
• 2017: "Unreal Estate" premiered in the Netherlands.
• 2018:
  • "Bottle Burglars" premiered.
  • "Sanitation Insanity" premiered in Germany, Austria, Switzerland, and Central & Eastern Europe.
• 2019:
  • "The Ballad of Filthy Muck" premiered in France and Latin America.
  • "Squirrel Jelly," "The String," and "The Nitwitting," premiered in France.
  • "Fun-Sized Friends" and "Grandmum's the Word" premiered in Japan.

April 14 is the 104th day of the year (105th in leap years) in the Gregorian calendar. There are 261 days remaining.

• 2017: "Code Yellow" premiered in the Netherlands.
• 2018:
  • "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.
• 2019: "Help Wanted" and "Reef Blower" premiered in Bangladesh, thus marking the premiere of SpongeBob SquarePants in that country.

April 15 is the 105th day of the year (106th in leap years) in the Gregorian calendar. There are 260 days remaining.

• 1959: Thomas F. Wilson was born.
• 2008:
  • Sea Horse Riding Made Easy, Spurskate, Saloon Door Sorrows, and Yokel to Tough Guy premiered.
  • SpongeBob's Pest of the West was released.
• 2017:
  • "Mimic Madness", "House Worming", "Snooze You Lose", and "Krusty Katering" premiered in France.
  • "Patrick-Man!" and "Gary's New Toy" premiered in Japan.
• 2018: Ronald Lee Ermey, who guest voiced the Warden in "The Inmates of Summer", dies.
• 2019: "Tea at the Treedome" premiered in Bangladesh.

April 16 is the 106th day of the year (107th in leap years) in the Gregorian calendar. There are 259 days remaining.

• 1950: Billy West, one of the voices of King Neptune and voice of one of the Seagulls in The SpongeBob Movie: Sponge Out of Water, was born.
• 2005: The SpongeBob SquarePants Movie was released in theatres in Indonesia.
• 2006: "Dunces and Dragons" premiered in New Zealand.
• 2012: "Accidents Will Happen," "The Other Patty," "A Friendly Game," and "Sentimental Sponge" premiered in Poland.
• 2016: "Sanctuary!" and "What's Eating Patrick?" premiered in Latin America.
• 2017: "Plankton Gets the Boot" premiered in Russia.
• 2018: "Bunny Hunt" premiered in Germany, Austria, Switzerland, and Central & Eastern Europe.
• 2019: "Bubblestand" premiered in Bangladesh.

April 17 is the 107th day of the year (108th in leap years) in the Gregorian calendar. There are 258 days remaining.

• 1974: Victoria Beckham, the voice of Queen Amphitrite, was born.
• 2007: Friend or Foe? was released.
• 2009: "SpongeBob SquarePants vs. The Big One" premiered.
• 2012: "Drive Thru," "The Hot Shot," "Squidward's School for Grown Ups," and "Oral Report" premiered in Poland.
• 2016: "Larry's Gym" premiered in Russia.
• 2017: "Krusty Katering" premiered in Latin America.
• 2018:
  • "Squid Noir" premiered in Germany, Austria, and Switzerland.
  • "Scavenger Pants" premiered in Central & Eastern Europe.
• 2019: "Ripped Pants" premiered in Bangladesh.

April 18 is the 108th day of the year (109th in leap years) in the Gregorian calendar. There are 257 days remaining.

• 2011: The Yellow Avenger was released on PC.
• 2012: "Sweet and Sour Squid" and "The Googly Artiste" premiered in Poland.
• 2015:
  • "Kenny the Cat" premiered in Southeast Asia.
  • "It Came from Goo Lagoon" premiered in Germany and Poland.
• 2017: "SpongeBob's Place" premiered in Latin America.
• 2018:
  • "Scavenger Pants" premiered in Germany, Austria, and Switzerland.
  • "Squid Noir" premiered in Central & Eastern Europe.
• 2019: "Jellyfishing" premiered in Bangladesh.

April 19 is the 109th day of the year (110th in leap years) in the Gregorian calendar. There are 256 days remaining.

• 2009: "SpongeBob SquarePants vs. The Big One" premiered in Poland.
• 2012: "Mermaid Man Begins" and "Plankton's Good Eye" premiered in Poland.
• 2013:
  • SpongeBob SquarePants 4-D: The Great Jelly Rescue! opened.
  • Plankton's Diary: Evil Laugh premiered.
• 2017: "Plankton Gets the Boot" premiered in Latin America.
• 2018: "The Incredible Shrinking Sponge" premiered in Central & Eastern Europe.
• 2019:
  • "The Nitwitting" premiered in Russia.
  • "Plankton!" premiered in Bangladesh.

April 20 is the 110th day of the year (111th in leap years) in the Gregorian calendar. There are 255 days remaining.

• 2002: Nicktoons Battle premiered.
• 2009: "SpongeBob SquarePants vs. The Big One" premiered in Canada.
• 2012: "Barnacle Face" and "Pet Sitter Pat" premiered in Poland.
• 2017: "Life Insurance" premiered in Latin America.
• 2018: "There's a Sponge in My Soup" premiered in Central & Eastern Europe.
• 2019:
  • "Doodle Dimension" and "Moving Bubble Bass" premiered in Japan.
  • "Naughty Nautical Neighbors" premiered in Bangladesh.

April 21 is the 111th day of the year (112th in leap years) in the Gregorian calendar. There are 254 days remaining.

• 2017: "Burst Your Bubble" premiered in Latin America.
• 2018:
  • "Sanitation Insanity" and "Bunny Hunt" premiered in France and Latin America.
  • "Squid Noir" and "Scavenger Pants" premiered in France.
  • "Mimic Madness" and "House Worming" premiered in Japan.
• 2019: "Boating School" premiered in Bangladesh.

April 22 is the 112th day of the year (113th in leap years) in the Gregorian calendar. There are 253 days remaining.

• 2006: The SpongeBob SquarePants Movie was released in theaters in Japan.
• 2009: SpongeBob & You Save the Big Blue, Educate and Activate, Educate and Activate 2, Separation Anxiety, Surfing Dreams, and SpongeBoard premiered.
• 2010:* "SpongeBob's Last Stand" premiered in the US and Poland.
• 2017:
  • "SpongeBob's Place", "Plankton Gets the Boot", "Life Insurance", and "Burst Your Bubble" premiered in France.
  • "Squid Plus One," "The Executive Treatment," "Company Picnic," "Pull Up a Barrel," "Sanctuary!," "What's Eating Patrick?," "Patrick! The Game," and "The Sewers of Bikini Bottom" premiered in Ukraine.
  • "License to Milkshake" and "Squid Baby" premiered in Japan.
• 2018: "Sanitation Insanity" and "Bunny Hunt" premiered in Israel.
• 2019:
  • "Appointment TV" premiered in Wallonia.
  • "Pizza Delivery" premiered in Bangladesh.

April 23 is the 113th day of the year (114th in leap years) in the Gregorian calendar. There are 252 days remaining.

• 2015: The SpongeBob Movie: Sponge Out of Water was released in Croatia.
• 2017: "Life Insurance" premiered in Russia.
• 2018: "Cuddle E. Hugs" and "Pat the Horse" premiered in Israel.
• 2019:
  • "Karen's Virus" premiered in Wallonia.
  • "Home Sweet Pineapple" premiered in Bangladesh.

April 24 is the 114th day of the year (115th in leap years) in the Gregorian calendar. There are 251 days remaining.

• 2007: Yo-Ho-Ha-Ha-Ha!: A Pirate Joke Book and Hooray for Dads! were published.
• 2018: "Chatterbox Gary" and "Don't Feed the Clowns" premiered in Israel.
• 2019:
  • "The Night Patty" premiered in Wallonia.
  • "Mermaid Man and Barnacle Boy" premiered in Bangladesh.

April 25 is the 115th day of the year (116th in leap years) in the Gregorian calendar. There are 250 days remaining.

• 1988: Sara Paxton, voice actor, is born.
• 2015: Encyclopedia SpongeBobia became eight years old.
• 2016:
  • Encyclopedia SpongeBobia became nine years old.
  • "What's Eating Patrick?" premiered in Germany and Poland.
• 2017: Encyclopedia SpongeBobia became ten years old.
• 2018:
  • Encyclopedia SpongeBobia became eleven years old.
  • "Drive Happy" and "Old Man Patrick" premiered in Israel.
  • "No Pictures Please" and "Stuck on the Roof" premiered in Russia.
• 2019:
  • Encyclopedia SpongeBobia became twelve years old.
  • "The Grill is Gone" premiered in Wallonia.
  • "Pickles" premiered in Bangladesh.

April 26 is the 116th day of the year (117th in leap years) in the Gregorian calendar. There are 249 days remaining.

• 2016: "SpongeBob LongPants" premiered in Germany and Poland.
• 2018:
  • "Fun-Sized Friends" and "Grandmum's the Word" premiered in Israel.
  • "Krabby Patty Creature Feature" and "Teacher's Pests" premiered in Russia.
• 2019:
  • "The Krusty Slammer" premiered in Russia.
  • "Bubbletown" premiered in Wallonia.
  • "Hall Monitor" premiered in Bangladesh.

April 27 is the 117th day of the year (118th in leap years) in the Gregorian calendar. There are 248 days remaining.

• 2016:
  • "Larry's Gym" premiered in Germany and Poland.
  • "The Fish Bowl" premiered in Poland.
• 2018:
  • "Squid Noir" and "Scavenger Pants" premiered in South Korea.
  • "Sanitation Insanity" premiered in Russia.
• 2019:
  • "FarmerBob" and "Gary & Spot" premiered in France.
  • "High Sea Diving" and "Bottle Burglars" premiered in Japan.
  • "Jellyfish Jam" premiered in Bangladesh.

April 28 is the 118th day of the year (119th in leap years) in the Gregorian calendar. There are 247 days remaining.

• 2010: "Rodeo Daze" premiered in Australia.
• 2015: The Main page contest's voting portion ended.
• 2016: "The Fish Bowl" premiered in Germany.
• 2017: "Whirly Brains" and "Mermaid Pants" premiered in Poland and Central & Eastern Europe.
• 2018:
  • "Cuddle E. Hugs", "Pat the Horse", "Chatterbox Gary", and "Don't Feed the Clowns" premiered in France.
  • "Snooze You Lose" and "Krusty Katering" premiered in Japan.
• 2019: "Sandy's Rocket" premiered in Bangladesh.

April 29 is the 119th day of the year (120th in leap years) in the Gregorian calendar. There are 246 days remaining.

• 2014:
  • SpongeBob Checks His Instaclam premiered.
  • SpongeBob, You're Fired! and Doodle Jump SpongeBob SquarePants were released.
• 2016: "Married to Money" premiered in Germany and Poland.
• 2017:
  • "SpongeBob LongPants," "Larry's Gym," "The Fish Bowl," and "Married to Money" premiered in Ukraine.
  • "Little Yellow Book" and "Bumper to Bumper" premiered in Japan.
• 2019:
  • "Girls' Night Out" premiered in Wallonia.
  • "Squeaky Boots" premiered in Bangladesh.

April 30 is the 120th day of the year (121st in leap years) in the Gregorian calendar. There are 245 days remaining.

• 2016:
  • "Patrick! The Game" premiered in Germany.
  • "The Sewers of Bikini Bottom" premiered in Poland.
• 2017:
  • "Goodbye, Krabby Patty?," "Unreal Estate," "Code Yellow," "Mimic Madness," "House Worming," "Snooze You Lose," "Krusty Katering," "SpongeBob's Place," "Plankton Gets the Boot," "Life Insurance," and "Burst Your Bubble" premiered in Poland.
  • "Burst Your Bubble" premiered in Russia.
  • "Mall Girl Pearl," "Two Thumbs Down," "Sharks vs. Pods," and "CopyBob DittoPants" premiered in Ukraine.
• 2018:
  • "Chatterbox Gary" and "Don't Feed the Clowns" premiered in Canada.
  • "Bunny Hunt" premiered in Russia.
• 2019:
  • "Squirrel Jelly" premiered in Wallonia.
  • "Nature Pants" premiered in Bangladesh.