2021 is a common year starting on Friday of the Gregorian calendar. This year the third movie (The SpongeBob Movie: Sponge on the Run) was released digitally in the United States on March 4, due to the COVID-19 pandemic.

This year also marks the second time that Nickelodeon aired no SpongeBob SquarePants-related material in a single day on the main channel since July 7, 2007. The show did air on Nicktoons, however.

Date Event(s)
Unknown date The SpongeBob Movie: Sponge on the Run will be released in Finland.
Unknown date Kamp Koral: SpongeBob's Under Years will premiere in Central & Eastern Europe.
Unknown date SpongeBob SquarePants Christmas Special (2021) will premiere.
July The Patrick Star Show will premiere.
January 10 "The SpongeBob SportsPants Countdown Special" premiered.
A sneak peek for "Kamp Koral: SpongeBob's Under Years" was shown.
January 12 The Complete Twelfth Season was released.
January 15 "Krusty Koncessionaires" and "Dream Hoppers" premiered in Latin America.
January 16 "Who R Zoo?" premiered in Germany, Austria, and Switzerland.
"The Krusty Slammer" and "Pineapple RV" premiered in Japan.
January 17 "Hiccup Plague" premiered in Germany.
"Dream Hoppers" premiered in Austria and Switzerland.
January 18 "Lighthouse Louie" and "My Two Krabses" premiered.
An exclusive look at "The SpongeBob Movie: Sponge on the Run" was shown.
January 21 Battle for Bikini Bottom - Rehydrated was released on the App Store and Google Play.
January 22 The first time that no SpongeBob SquarePants-related material aired on the main Nickelodeon channel in a single day since July 7, 2007.
January 23 "Plankton's Old Chum" and "Stormy Weather" premiered in Japan.
January 29 "Jolly Lodgers" premiered in Greece.
January 30 "Swamp Mates" and "One Trick Sponge" premiered in Japan.
February 2 The SpongeBob Movie: Sponge on the Run DVD and Blu-ray were released in Canada.
The SpongeBob 3-Movie Collection was released in Canada.
February 6 "The SpongeBob SportsPants Countdown Special" premiered in Canada.
"Krusty Koncessionaires" officially premiered in Germany.
"Dream Hoppers" premiered in Germany.
"Krusty Koncessionaires" premiered in Austria and Switzerland.
"The Krusty Bucket" and "Squid's on a Bus" premiered in Japan.
February 7 "Shell Games" officially premiered in Russia.
February 10 The SpongeBob Movie: Sponge on the Run was released in the UK.
February 11 "Boss for a Day," "The Goofy Newbie," "The Ghost of Plankton," and "My Two Krabses" premiered in Finland.
February 12 "Knock Knock, Who's There?," "Pat Hearts Squid," "Lighthouse Louie," and "Hiccup Plague" premiered in Finland.
February 13 "My Two Krabses" premiered in Canada.
"Sandy's Nutty Nieces" and "Insecurity Guards" premiered in Japan.
February 14 "My Two Krabses" and "Krusty Koncessionaires" premiered in Russia.
February 15 "Who R Zoo?" and "Kwarantined Krab" premiered in Finland.
February 16 "Plankton's Intern," "Patrick's Tantrum," "Bubble Bass's Tab," and "Kooky Cooks" premiered in Finland.
February 17 "Krusty Koncessionaires" and "Dream Hoppers" premiered in Finland.
February 21 "Dream Hoppers" premiered in Russia.
February 22 "Pineapple RV" premiered in Southeast Asia.
"Pineapple RV" officially premiered in South Africa, Iberia, Wallonia, Central & Eastern Europe, and Turkey.
February 23 "Jolly Lodgers" premiered in Central & Eastern Europe, Sweden, Denmark, Turkey, Iberia, and South Africa.
February 24 "Boss for a Day" premiered in South Africa.
"The Goofy Newbie" premiered in Central & Eastern Europe, Turkey, Iberia, and Wallonia.
February 25 "Swamp Mates" premiered in Turkey, Denmark, and South Africa.
"Swamp Mates" officially premiered in Norway, Sweden, Southeast Asia, and Wallonia.
February 26 "One Trick Sponge" premiered in Turkey, Sweden, Denmark, and South Africa.
"One Trick Sponge" officially premiered in Norway, Southeast Asia, and Wallonia.
"Who R Zoo?" premiered in Latin America.
March 4 CBS All Access was rebranded as Paramount+.
The SpongeBob Movie: Sponge on the Run was released on VOD and Paramount+.
The first six full episodes of Kamp Koral: SpongeBob's Under Years were released on Paramount+ in the United States and Latin America.
March 5 "FarmerBob" and "Gary & Spot" premiered in Hong Kong.
March 6 The SpongeBob Movie: Sponge on the Run was released in Israel.
"Shell Games," "Jolly Lodgers," and "Pineapple RV" officially premiered in France.
March 8 "The Nitwitting" and "The Ballad of Filthy Muck" premiered in Hong Kong.
March 9 "The Krusty Slammer" and "Pineapple RV" premiered in Hong Kong.
March 10 "Gary's Got Legs" and "King Plankton" premiered in Hong Kong.
March 11 "Plankton's Old Chum" and "Stormy Weather" premiered in Hong Kong.
March 12 "Swamp Mates" and "One Trick Sponge" premiered in Hong Kong.
March 13 "2021 Kids' Choice Awards short" premiered in the United States and Canada.
"Boss for a Day" premiered in France.
March 14 "2021 Kids' Choice Awards short" premiered in the Netherlands and Belgium.
March 15 "2021 Kids' Choice Awards short" premiered in the UK, Ireland, Australia, New Zealand, Russia, Germany, Switzerland and Austria.
"The Krusty Bucket" and "Squid's on a Bus" premiered in Hong Kong.
March 16 "Sandy's Nutty Nieces" and "Insecurity Guards" premiered in Hong Kong.
March 17 "2021 Kids' Choice Awards short" premiered in France, Wallonia, Europe, Turkey, Spain, Portugal and Mexico.
"Broken Alarm" and "Karen's Baby" premiered in Hong Kong.
March 18 "Shell Games" and "Senior Discount" premiered in Hong Kong.
March 19 "Mind the Gap" and "Dirty Bubble Returns" premiered in Hong Kong.
"2021 Kids' Choice Awards short" premiered in Italy.
March 20 "Krusty Koncessionaires" and "Dream Hoppers" premiered in France.
"Lighthouse Louie" premiered in Latin America.
March 22 "Jolly Lodgers" and "Biddy Sitting" premiered in Hong Kong.
March 23 Part 1 of "SpongeBob's Big Birthday Blowout" premiered in Hong Kong.
March 24 Part 2 of "SpongeBob's Big Birthday Blowout" premiered in Hong Kong.
March 25 The first six episodes of Kamp Koral: SpongeBob's Under Years were released on Paramount+ in Scandinavia.
"SpongeBob in RandomLand" and "SpongeBob's Bad Habit" premiered in Hong Kong.
March 26 "Handemonium" and "Breakin'" premiered in Hong Kong.
March 27 "Broken Alarm" premiered in Germany, Austria, and Switzerland.
March 29 "Boss for a Day" and "The Goofy Newbie" premiered in Hong Kong.
March 30 "A Cabin in the Kelp" and "The Hankering" premiered in Hong Kong.
March 31 "Escape from Beneath Glove World" premiered in Hong Kong.
April 1 "Krusty Koncessionaires" and "Dream Hoppers" premiered in Hong Kong.
April 2 "Sugar Squeeze," "Tag, You're It," and the start of Kamp Koral: SpongeBob's Under Years premiered on Nickelodeon.
"2021 Kids' Choice Awards short" premiered in Greece.
April 5 "Kwarantined Krab" premiered in Austria and Switzerland.
April 9 "Bubble Bass's Tab" and "Kooky Cooks" premiered.
Mighty Friday Nights started.
"My Two Krabses" premiered in Poland.
April 10 "Kwarantined Krab" accidentally premiered in Latin America.
April 16 "Under the Small Top," "Squidward's Sick Daze," and "Dying for Pie: Puppet Edition!" premiered.
"The Ghost of Plankton" and "My Two Krabses" premiered in South Korea.
April 17 "Under the Small Top" and "Squidward's Sick Daze" premiered in Canada.
April 19 "Swamp Mates" officially premiered in the UK and Ireland.
April 20 "Knock Knock, Who's There?" premiered in the UK and Ireland.
April 21 "Pat Hearts Squid" premiered in the UK and Ireland.
April 22 "Plankton's Intern" premiered in the UK and Ireland.
April 23 "Knock Knock, Who's There?" and "Wet Painters: Puppet Edition!" premiered.
"Patrick's Tantrum" premiered in the UK and Ireland.
"Bubble Bass's Tab" and "Kooky Cooks" premiered in South Korea.
"My Two Krabses" officially premiered in Latin America.
"Sugar Squeeze," "Tag, You're It," and the start of Kamp Koral: SpongeBob's Under Years premiered in Brazil.
April 24 "Bubble Bass's Tab" and "Kooky Cooks" premiered in Canada.
April 25 "Bubble Bass's Tab," "Kooky Cooks," "A Place for Pets," "Lockdown for Love," "Under the Small Top," and "Squidward's Sick Daze" premiered in Italy.
April 26 "One Trick Sponge" premiered in the UK and Ireland.
April 27 "Krusty Koncessionaires" premiered in the UK and Ireland.
April 28 "Dream Hoppers" premiered in the UK and Ireland.
April 29 SpongeBob: Krusty Cook-Off was released on the Switch.
"Bubble Bass's Tab" premiered in the UK and Ireland.
April 30 "Plankton's Intern" and "Can You Spare a Dime?: Puppet Edition!" premiered.
Mighty Friday Nights ended.
"Kooky Cooks" premiered in the UK and Ireland.
"Knock Knock, Who's There?" premiered in South Korea.
May 1 The SpongeBob SquarePants series became 22 years old.
May 3 "Pineapple RV" officially premiered in Australia and New Zealand.
May 4 "The Krusty Slammer" officially premiered in Australia and New Zealand.
May 5 "Swamp Mates" premiered in Australia and New Zealand.
May 6 "One Trick Sponge" premiered in Australia and New Zealand.
May 7 "Plankton's Intern" premiered in South Korea.
May 8 "Under the Small Top" and "Squidward's Sick Daze" premiered in Latin America.
May 10 "Knock Knock, Who's There?" premiered in Australia and New Zealand.
May 11 "Kooky Cooks" premiered in Australia and New Zealand.
May 12 "Bubble Bass's Tab" premiered in Australia and New Zealand.
"FarmerBob" and "Gary & Spot" premiered in Iran.
May 13 "Plankton's Intern" premiered in Australia and New Zealand.
"The Nitwitting" and "The Ballad of Filthy Muck" premiered in Iran.
May 14 "A Place for Pets," "Lockdown for Love," "Bubble Bass's Tab," and "Kooky Cooks" premiered in Latin America.
"The Krusty Slammer" and "Pineapple RV" premiered in Iran.
May 18 "Who R Zoo?" will premiere in Australia and New Zealand.
"Knock Knock, Who's There?" will premiere in the Netherlands and Belgium.
May 19 "Krusty Koncessionaires" and "Dream Hoppers" will premiere in Australia and New Zealand.
"Plankton's Intern" will premiere in the Netherlands and Belgium.
May 20 "Bubble Bass's Tab" will premiere in the Netherlands and Belgium.
May 21 "Kooky Cooks" will premiere in the Netherlands and Belgium.
May 24 "A Place for Pets" will premiere in the Netherlands and Belgium.
"The Goofy Newbie" will premiere in Australia and New Zealand.
May 25 Kamp Koral Activity Book, Kamp Koral Joke Book, and Snack Attack! will be released.
"Lockdown for Love" will premiere in the Netherlands and Belgium.
May 26 "Squidward's Sick Daze" will premiere in the Netherlands and Belgium.
"The Goofy Newbie" will premiere in Australia and New Zealand.
May 27 "Under the Small Top" will premiere in the Netherlands and Belgium.
May 29 "Bubble Bass's Tab" will premiere in Germany, Austria, and Switzerland.
May 31 SpongeBob Moves In! will shut down.
June 5 "Kooky Cooks" will premiere in Germany, Austria, and Switzerland.
June 12 "Mind the Gap" will premiere in Germany, Austria, and Switzerland.
June 19 "Dirty Bubble Returns" will premiere in Germany, Austria, and Switzerland.
July 13 The SpongeBob Movie: Sponge on the Run DVD and Blu-ray will be released in the United States.
October 1 The SpongeBob SquarePants Movie will be released in Mainland China.

References

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