[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/summerbelongstoyouad_1.png]]
[[caption-width-right:350: [[{{Literature/AroundTheWorldInEightyDays}} Around The World in 40 Hours]]]]
For the Summer Solstice, Phineas and Ferb decide to travel around the world in a specially-made rocket ship following the sun to make the longest day of summer even longer. Meanwhile, Doofenshmirtz travels to Tokyo with his daughter Vanessa and a kidnapped Major Monogram to sabotage the "Annual Good Guy Convention" being held there.

----
!Tropes:
* TenMinuteRetirement: Phineas, of [[OOCIsSeriousBusiness ALL]] people, gets one when he can't think of any way to get himself and his friends off a deserted island before sundown. It takes Isabella indirectly giving him an idea to bring him to his senses.
* AdvancedTech2000: Phineas and Ferb reveal their invention to make the longest summer day ever: a jet to travel around the world that they dubbed the Sun-Beater 3000. This prompts Buford to lampshade it.
-->'''Buford:''' It's a name, followed by a big number!
* AffectionateGestureToTheHead: Done by Candace to Ferb in the final song sequence. And considering it's pretty much the ''only'' time so far that she's shown physical affection to her little stepbrother, it's nothing short of adorable.
* TheAllegedCar: The Sunchaser 3000 keeps falling apart easily, and does not seem to work whenever it wants to.
* AlmostKiss: Candace and Jeremy attempt to share a kiss in Paris, but it fails because Candace slowly moves away from Jeremy as the gang's jet drifts along the water.
* AnimationBump: The animation in this episode is considerably a lot more expressive than in previous episodes, particularly during Clay Aiken and Chaka Khan's number.
* TheAnticipator: Subverted. Baljeet meets his Uncle Sabu in the Himalayas, who proclaims that he's been expecting the gang to come; turns out he just likes to say "I've been expecting you" to freak out tourists.
* ArbitrarySkepticism: Buford suddenly begins to doubt that Phineas and Ferb could follow the sun around the world, thus experiencing a 40 hour day, despite spending the whole summer with them and seeing all the incredible things they've done. Buford even {{lampshades}} this. Although it is implied that Buford instigated this just so he could eat a bug.
-->'''Buford:''' There's nothing I've ever seen that would make me believe that you could pull this off! [[Recap/PhineasAndFerbItsAboutTime Except for that time machine thing]] and oh, and that [[Recap/PhineasAndFerbRollercoaster rollercoaster]], but other than that, nothing. Oh, and that time [[Recap/PhineasAndFerbOhThereYouArePerry you played that song and the platypus came back]]. Man, nature just bends to your will, doesn't it?
* ArtisticLicense: The day before Summer Solstice, Phineas says their summer vacation is more than halfway over; in reality, Summer Solstice is the first day of the summer season altogether.
* ArtisticLicenseGeography: The gang's journey from the Himalayas to Paris hop all over the place if you try to plot it out, sometimes even treading backwards.[[note]]Then again, the music that accompanies this scene isn't called "Bouncin' Around the World" for nothing.[[/note]] They went from Madagascar to China to the Baltic Sea to Italy to the Netherlands to Russia to Spain to Egypt to Singapore to Australia to Greece to Belgium (in that order, and that's not even half of the places they visit throughout the entire trip) before FINALLY landing on Paris.
* ArtEvolution: By this point in the series, the animation and art have noticeably gotten better. This is especially evident in the scene with Phineas showing his friends the plane at dawn.
* ArtShift: "J-Pop (Welcome to Tokyo)", the musical number done by Stacy’s cousins, shifts to an {{Animesque}} style.
* AsianSpeekeeEngrish: The lyrics for "J-Pop (Welcome to Tokyo)" were written by putting the English phrases through Google Translate and then translating them to Japanese and then back to English. (This was before Google improved their translation app to make their translations more grammatically correct.)
* AwLookTheyReallyDoLoveEachOther: One of the few times that Candace does not spend the full episode trying to bust her brothers. When they finally make it back to the backyard in time, she ends up hugging them, and even expresses her love for them during her verse of the title song.
* BaitAndSwitchSilhouette: Played with. Phineas and Ferb's Sun-Beater 3000 is hidden beneath a tarp that is somehow shaped like the Art/StatueOfLiberty, which Phineas doesn't even notice until Isabella points it out. The boys later reveal a scale model of the solar system behind a tarp that's shaped like the Discobolus statue.
* TheBet: If Phineas, Ferb and the gang make it around the world before the sun sets back home, Buford has to give them their bikes back (and also [[{{unishment}} eat a bug]]). If not, they'll have to spend the rest of the summer doing nothing.
* TheBigDamnKiss: Shared between Candace and Jeremy in the end.
* BigFinaleCrowdSong: The final number has a triumphant dance party as Phineas and the gang celebrate successfully managing to travel the world before sunset, with Phineas, Candace, and Isabella each getting their own verses in the song. This is notably the longest song in the series. Most of the songs are between one and one and a half minutes, while this is almost three minutes long, the length of a regular pop song.
* BigOlUnibrow: Type II with Major Monogram, which Doofenshmirtz makes fun of by calling him "Major Monobrow".
-->'''Major Monogram''': That's it, I'm getting my tweezers back from Carl.
* BilingualBonus: The hotel Jeremy's staying at in Paris is named Hotel La Poubelle. It's French for "the trash can".
* BilingualRhyme: Isabella's song "City of Love," about how she wishes Phineas would notice her after they crash-landed in Paris, rhymes, "I wish that he would whisper ''ma chérie, je t'aime''"[[note]]French for "My darling, I love you"[[/note]] with "But all he wants to do is try to fix that plane."
* BodyWipe: Candace's red shirt briefly fills the screen during her verse in "Summer Belongs to You".
* BorrowedCatchphrase: Chaka Khan says, "Hey, where's Perry?
* BrandishmentBluff: After Doofenshmirtz gets arrested in Paris by Monogram, Vanessa threatens Monogram and Perry with a black hair dryer, pretending that it's a gun. Surprisingly enough, it works, allowing her to steal Perry's hovercar and take her dad back home.
* BreakTheCutie: Isabella suffers this when her attempts to have a romantic moment with Phineas in Paris are continually sabotaged by his focus on getting the plane repaired.
* BreakingTheFourthWall:
-->'''Linda:''' It sure would be helpful if they could just make the days a little longer.\\
''[A "ding" noise signaling an idea is heard as the bottom half of the screen is covered with an "advertisement" reading "You're Watching Television!"]''\\
'''Phineas:''' Hey! Do you mind? We've kinda got a visual gag going on here!\\
''[Advertisement disappears, revealing the "ding" was actually from Ferb with a triangle.]''\\
'''Phineas:''' Thank you!
* BrickJoke: Buford made a bet with Phineas saying that if the former's proven wrong, he has to own up by eating a bug (although he really just [[{{unishment}} wants to eat a bug]]). By the end of the episode, as the gang's paper plane crosses the ocean, Buford exclaims happily that he finally ate a bug.
* BriefAccentImitation: "Would you like your [Perry noise] with or without ''fromage''?"
* CharacterizationMarchesOn: While in the second season a lot of the characters have undergone a fair personality development, but it's this episode that really skyrocketed with deepening the characters' individualities. Phineas showing that he's not completely resourceful, getting frantic once he's realized his perplexity and showing anger and impatience for once, Ferb working on his relationship with Vanessa, Candace gaining belief in herself and things seemingly impossible, Vanessa accepting her father's quirks and peculiarity, Jeremy earning the ability to tell Candace about her annoying obsessive behaviour (which further led them to become an OfficialCouple), Isabella crossing the edge of her endurance to Phineas' ignorance towards her and [[TheHeart revealing to be the only one able to encourage him into not giving up]]. Even Buford gets some screen time showing that he is fluent in French and can quote Voltaire from heart. Only Baljeet remained unaltered by the episode.
* ChekhovsGun: This episode has a series of these, almost all of them in near-succession:
** Doofenshmirtz's giant water balloon is flung all the way from Tokyo over to Paris, splashing into the ocean and giving Phineas and Ferb's vehicle a boost so that they can arrive home faster.
** The world map that was used to showcase their around the world travel plan, stored inside Ferb's pocket, ends up being exactly the thing that gets the gang out of the deserted island, by virtue of it being turned into a giant paper plane.
** In the beginning of the episode, Linda complains that there is roadwork in the city that causes her to go a longer path; also, just before the gang starts their world trip, Buford wagers the bikes he's stolen from everyone if Phineas arrives home before sundown. Sure enough, as the gang arrives at Danville, there's a road construction blocking the way; fortunately, Buford's house is nearby, prompting him to return everyone's bikes earlier than he had wagered, including...
--->'''Buford''': A recumbent? Really?\\
'''Baljeet''': Studies say it is better for your back.\\
'''Buford''': How come I don't hafta stand in line to bully you?
* ClapYourHandsIfYouBelieve: Parodied as Phineas gets everyone, including Candace, to shout "I believe!" as they prepare to jump the giant hole in the unfinished road.
* CommercialPopUp: Parodied. A fake pop-up appears declaring "You're Watching Television!" appears as a sound effect is heard indicating Phineas has an idea; Phineas complains that the "ad" is obscuring a visual gag, and the pop-up disappears to show Ferb holding a triangle.
* ContinuityCavalcade: Many times.
** When coming up with the big idea of the day, Phineas mentions that they "[[Recap/PhineasAndFerbRollercoaster built a rollercoaster]], [[Recap/PhineasAndFerbItsAboutTime traveled through time]] [[Recap/PhineasAndFerbPhineasAndFerbsQuantumBoogaloo twice]], [[Recap/PhineasAndFerbAtlantis found Atlantis]], {{blah blah blah}}..."
** Buford's speech telling Phineas that he can't travel around the world in a single day: "Nah, nah! Don't try to confuse me with your sorcerous ways. There's nothin' I've ever seen that would make me believe you could pull this off. Except for that time-machine thing, and oh, and the rollercoaster! But other than that, nothin'! Oh, and [[Recap/PhineasAndFerbOhThereYouArePerry the time you played that song when the platypus came back]]... Man, nature just bends to your will, doesn't it?"
** Phineas inspires confidence in Candace by reminding her of the time [[Recap/PhineasAndFerbItsAMudMudMudMudWorld she drove a monster truck]], [[Recap/PhineasAndFerbGreeceLightning a chariot]], [[Recap/PhineasAndFerbUnfairScienceFairRedux and when she became the Queen of Mars]]. Candace continues by stating the times she [[Recap/PhineasAndFerbTheLakeNoseMonster became a lifeguard]], a time traveler, and the time she was called a ''[[Recap/PhineasAndFerbRunAwayRunway cou de crayon]]''.
** While trying to help Phineas get his mojo back after they get stranded, Isabella mentions the rollercoaster and the fact that they travelled through time twice yet again, along with the time they made [[Recap/PhineasAndFerbTreeToGetReady giant tree house robots]].
** Ferb: "[[Recap/PhineasAndFerbFlopStarz Bay-bee, bay-bee, bay-bee, bay-bee...]]"
** And finally, at the very end of the episode, we see very brief snippets from the following episodes that come prior: "Rollercoaster", [[Recap/PhineasAndFerbTheFastAndThePhineas "The Fast and the Phineas"]], [[Recap/PhineasAndFerbLawnGnomeBeachPartyOfTerror "Lawn Gnome Beach Party of Terror"]], "Unfair Science Fair Redux", [[Recap/PhineasAndFerbFlopStarz "Flop Starz"]], [[Recap/PhineasAndFerbMomsBirthday "Mom's Birthday"]], [[Recap/PhineasAndFerbCometKermillian "Comet Kermillian"]], "Greece Lightning", [[Recap/PhineasAndFerbOutToLaunch "Out to Launch"]], [[Recap/PhineasAndFerbLeaveTheBustingToUs "Leave the Busting to Us"]], and [[Recap/PhineasAndFerbTheBaljeatles "The Baljeatles"]].
* ContinuityNod:
** In [[Recap/PhineasAndFerbSwissFamilyPhineas "Swiss Family Phineas"]], Candace questioned how come Phineas and Ferb didn't make something to get them off the island and even suggests how they should have done it, including using a giant slingshot to launch them off the island. In this episode, they use a slingshot to launch a ''giant paper plane'' so they can leave this island.
** Clay Aiken and Chaka Khan are wearing the "Summer All The Time" collection from [[Recap/PhineasAndFerbRunAwayRunway "Run Away Runway"]], which is oversized versions of Phineas and Ferb's wardrobe.
** In [[Recap/PhineasAndFerbVanessassaryRoughness "Vanessassary Roughness"]], Ferb starts to tell Vanessa what his name is short for, but interrupts himself before he can finish. In this episode, Vanessa asks Candace what "Ferb" is short for; Candace doesn't know.
* CrushFilter: During "City of Love", the background is noticeably pinkish with hearts floating in the air. As Isabella grows more saddened, the background becomes desaturated and the hearts eventually break and litter the ground.
* CutAndPasteNote: Carl received a note from Monogram that says [[ImplausibleDeniability he hasn't been kidnapped and that he's just on vacation]]. Said letter is stylized with this trope, which Carl lampshades by pointing out how weird it is that he took a lot of time to cut each letter out of a magazine.
* DancingBear: A good chunk of the advertising for this special focused on the fact that it was the longest episode of ''Phineas and Ferb'' ever, with the summer solstice plot explicitly playing into the episode's length.
* DescentIntoDarknessSong: "City of Love", which is initial glee at Isabella being in the most romantic place in the world, slowly sinks into despair and sadness as Phineas is way too focused on fixing the plane and doesn't even notice her. [[MoodLighting It even helps with the changing of the background.]]
* DespairEventHorizon: When Phineas, Ferb, Candace, Isabella, Baljeet, and Buford are stranded on a desert island in the Atlantic with an industrial sized rubber band, two palm trees, a row of airplane seats, an ox, and only a few minutes left before the sun sets and he has to give up inventing forever. He tries desperately to produce a means of escape, but with so few tools none of his plans can work. Eventually he collapses in defeat and resigns himself to watching the sunset, and it takes an impassioned plea from Isabella to snap him out of his funk and produce a plan that ''can'' work.
* ExtraLongEpisode: This episode runs for a total of 46 minutes without advertisements, longer than any other episode in the series; it's only beaten by specials such as ''WesternAnimation/PhineasAndFerbStarWars'' and the [[WesternAnimation/PhineasAndFerbTheMovieAcrossThe2ndDimension two]] [[WesternAnimation/PhineasAndFerbTheMovieCandaceAgainstTheUniverse movies]].
* FilmiMusic: The extremely catchy and flashy Bollywood song "Rubber Bands, Rubber Balls".
* FunWithAcronyms: This is the first time the agency that Major Monogram and Perry work for is mentioned by name: the O.W.C.A., or the [[ShapedLikeItself Organization Without a Cool Acronym]]. Lampshaded.
-->'''Doofenshmirtz:''' Wow, that really isn't a cool acronym.\\
'''Monogram:''' Told ya.
* GayParee: Much of the second part of the special takes place in Paris, playing up the cultural stereotypes, especially with the moniker of the "City of Love".
* GlobalIgnorance: Stacy thinks that the pyramids are located in France. When Candace calls her out on it, she corrects herself by saying that they're located in Belgium instead.[[note]]The entrance to the Louvre in Paris ''is'' shaped like a pyramid, but that's not the point.[[/note]]
* GratuitousJapanese: When the gang arrives at Tokyo, Ferb finds one of Stacy's relatives and greets her with 「こんにちは、ステイシーの友達です。」[[note]]Konnichiwa, Suteishī no tomodachi desu. [=/=] Hello, we are friends of Stacy.[[/note]] Gratuitous, because it turns out Stacy's relatives are all able to speak English anyway, albeit slightly off.
* GreenAesop: The Sunbeater 3000 runs on vegetable oil, making it eco-friendly.
* HammerspaceHair: Ferb gets an extra pencil for Isabella out of his hair.
* HeartSymbol: Hundreds of hearts, full and broken, appear throughout "City of Love".
* HeroicBSOD:
** Phineas undergoes one when the gang is stranded on an island and he tries to figure out what to do to get off in time only to lose hope. He's only snapped out of it when Isabella indirectly gives him an idea to bring him to his senses.
** Isabella gets one at the same time as she out her feelings to Ferb that he didn't even notice her in Paris, and thinks of giving up. She snaps out when she realizes how much the situation relates more to Phineas than herself.
* HiddenDepths: Apparently, Paris brings out the best in Buford, since he speaks fluent French and is able to quote Creator/{{Voltaire}}.
* HumanSnowball: Doofenshmirtz is sent via ejection seat to the Himalaya mountains to get Vanessa home, but he accidentally crashes into the snowy mountainside and falls over, creating a giant snowball that's headed right towards Phineas and Ferb's jet.
* IResembleThatRemark: When they crash onto the deserted island, Candace notes that the only things there are two trees and a big fat ox. Buford is offended when he thinks she is referring to him, but it turns out she was actually talking about a literal big fat ox on the island.
* IdeaDing: Parodied during the "You're Watching Television" gag. When Linda suggests that the days should be longer, a ding is heard, and when the fake advertisement disappears, it is revealed to have actually been Ferb striking a triangle.
* IncrediblyLongNote: "We make rubber baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaands!"
* ImpossiblyCompactFolding: The boys prepare a giant world map to showcase their planned trip around the world, which neatly folds into a tiny little square inside Ferb's pocket.
* InMediasRes: The episode once again starts with yet another failed busting attempt, with Phineas and Ferb having built a robot that apparently can jump rope after becoming self aware. In a reversal, it also ''begins'' with Phineas saying, "Oh, there you are, Perry" and Phineas says "Hey, where's Perry?" at the end of the episode.
* InstantCostumeChange: During "Bouncing Around the World", members of the gang change costume based on their location, such as Candace, Isabella, and Vanessa wearing blonde wigs and wooden shoes in the Netherlands, and Baljeet dressed in a toga and Buford as Caesar in Rome.
* InstantWristwatch: When the gang see the construction, Isabella is suddenly wearing a watch declaring there are only 58 seconds until sundown.
-->'''Baljeet''': [[LampshadeHanging What kind of watch]] ''[[LampshadeHanging is]]'' [[LampshadeHanging that?]]
* IntentionalEngrishForFunny: The lyrics to "Welcome to Tokyo" are in English, just not exactly ''perfect'' English.
-->''Welcome to Tokyo\\
Being glad that you are here\\
We came visiting, delightful us\\
Welcome to Tokyo''\\
[...]\\
''As for a list of exotic amusements\\
Which makes between the summer, there\\
Is here we look at baseball\\
Like the fact that it does''
* TheItemNumber: "Rubber Bands, Rubber Balls", the obligatory Bollywood number in the Himalayas. Originally, the female dancers were drawn more promiscuously. They were changed to look somewhat more conservative.
* ItsProbablyNothing:
** Carl briefs in Perry by stating that he receives a letter from what appears to be Major Monogram, [[ImplausibleDeniability stating that he hasn't been kidnapped at all and no one should look for him]], while also mentioning that Monogram is the keynote speaker of the Annual Good Guy Convention in Tokyo, where Doofenshmirtz and his daughter are also visiting. He concludes by stating the whole thing is just a big coincidence, and that Perry is free to take the day off. Luckily, Perry doesn't buy it and heads to Tokyo anyway.
** Also played with: Phineas notices that the plane is losing altitude thanks to them not accounting for an extra passenger (Vanessa) hopping along for the ride. Candace asks if this will affect their arrival in Paris, to which Phineas replies that he'll let her know in about two seconds. Literally two seconds later, the plane crashes through a mountain and lost both of its wings.
* JustInTime: The gang finishes the journey around the world and arrives home with only one second remaining before the sun goes down.
* LastSecondWordSwap: This part from Isabella as she gives Phineas an encouraging pep talk.
-->"Well, that's not the Phineas Flynn I fell in...to...this situation with."
* LeftTheBackgroundMusicOn: In the "You're Watching Television" gag, the IdeaDing is revealed to be Ferb striking a triangle. Later, when Phineas says "I know what we're gonna do today", a large fanfare is heard, revealed to be Ferb playing an unusual instrument basically made up of all the brass instruments.
* LetsSplitUpGang: Phineas suggests the gang split up to search for fuel and parts when they get to Paris.
-->'''Buford''': Yeah, my pants are way ahead of ya!
* LiteralMetaphor:
** When Doofenshmirtz threatens Monogram, the latter proclaims that he can't be swayed, for he has "nerves of steel, and an iron will, and... gold teeth, and a... copper spleen. Basically, I'm 35% metal."
--->'''Doofenshmirtz:''' Oh, man. It must be hard getting through the airport.\\
'''Monogram:''' Oh, don't get me started.
** When the group ends up on a deserted island, Candace said the only other thing on the island besides them[[note]]and a couple of palm trees[[/note]] was "a big, fat ox". Buford took offense to that, but Candace pointed out she meant there was an actual ox on the island with them.
* LittleNo: Isabella says this once Phineas gets a HeroicBSOD and has a realization about what he should really be doing now.
* LivingClothes: This episode introduces the Klimpaloon, a magical OldTimeyBathingSuit that lives in the Himalayas, and whose only form of speech is [[TheUnintelligible saying "NANG NANG NANG NANG" over and over]].
* MoodLighting: When "City of Love" begins, the colors are vibrant and the sky is clear, but when Isabella becomes saddened near the end, the colors become slightly desaturated, and the sky becomes cloudy and dark.
* NoEnding: Since Doof and Vanessa stole Perry's hovercar, it is not revealed how or if Monogram and Perry were able to return to the United States, since the last time we see Monogram, he is taking in a Parisian revue, and Perry is having a romantic meal with a human female companion at a Parisian café.
* ObliviousToLove: Taken to extreme here with Phineas, as he has absolutely ''no idea'' Isabella is trying to seize a romantic moment with him in Paris and only assumes she's showing him suggestions on how to fix the plane. Furthermore, Phineas is ''not'' oblivious of the crush Ferb has on Vanessa and the crush Candace has on Jeremy, and the fact both of those groups had some alone time in the city of love. The fact Phineas is aware of the potential romance between those other couples is enough to drive Isabella to pencil-snapping head-explosion-imagining aggravation.
* OOCIsSeriousBusiness: When Candace is reluctant to get on her old tricycle so they can race home before time runs out, Phineas loses his temper and snaps at her. ''"GET ON THE TRIKE!"''
* OrbitalShot: Isabella has a brief one during "City of Love".
* PepTalkSong: "I Believe We Can" by Clay Aiken and Chaka Khan.
* PoorCommunicationKills: Phineas suffers these in Paris, during the "City of Love" number as Isabella is trying to have a romantic moment with him. Whenever she points out a specific location, he misinterprets the meaning and thinks of something to fix the plane depending on what is shown.
* {{Pun}}: "Ah, [[Theatre/{{Hamlet}} there's the rub...]] right next to the pair of ducks[[note]]paradox[[/note]]. I'm also packing this book of puns."
* RealAfterAll: As the gang passes through the Himalayas, Phineas mentions the cryptid living in the area known as Klimpaloon, which is a sentient old-timey bathing suit. Candace says that he made that up, but later when the gang actually crash into the Himalayas, Klimpaloon walks past them, prompting Phineas to say, "And you thought I made it up!"
* RelationshipUpgrade: Candace and Jeremy officially become boyfriend and girlfriend.
* RevealShot: Before "I Believe We Can" as Phineas is delivering his RousingSpeech, he climbs onto the plane wing and we see what appears to be his feet stepping into view in close-up, then the camera zooms out to reveal the feet are really those of Clay Aiken in Phineas' clothes.
* RoundaboutShot: Phineas and Isabella have one as they dance during the closing song. Provides the trope's page image.
* RousingSpeech:
** Phineas gives one to all the kids in the backyard, as the gang prepares for their journey around the world. This is quickly followed by an inspirational musical number featuring Clay Aiken and Chaka Khan.
** Isabella gives one to Phineas, having snapped out of her HeroicBSOD thanks to having a EurekaMoment, in an attempt to never give up and not lose the bet.
* RunningGag: In the second half, there's everyone pointing out how Candace completely missed the Clay Aiken[=/=]Chaka Khan musical number, much to her annoyance.
* SdrawkcabName: Doofenshmirtz mentions that him, Perry and Monogram are heading to a place called "sᴉɹɐԀ", according to his "SPG"; Perry notices and turns Doofenshmirtz's GPS right side up, confirming that they're heading to Paris.
* SeparatedByACommonLanguage: Candace uses a French phrasebook to ask for directions, even though the woman she is speaking to already speaks English.
* SeriesContinuityError: At the beginning of the episode, Phineas mentions "we traveled through time twice", and Isabella says the same thing later on when attempting to break Phineas out of his HeroicBSOD. However, neither should be aware of this since in "Phineas and Ferb's Quantum Boogaloo" when Future Candace fixed the past, Past Isabella time traveled to the time of the beginning of said episode to give the boys the tool they need, thus canceling the plot of the rest of the episode entirely.
* SettingOffSong: "Bouncin' Around The World" by Love Händel, which plays during the montage of the gang...[[ExactlyWhatItSaysOnTheTin well, you know what's described.]]
* ShoutOut:
** Twice, the robot paraphrases [[UsefulNotes/{{Solipsism}} Rene Descartes]], "I jump rope, therefore I am" and "I dangle, therefore I am".
** "J-Pop" is largely a parody of the [[Music/{{Caramell}} Caramelldansen]] video, but it also features Isabella dancing while waving a leek (in reference to [[Memes/{{Bleach}} the "Ievan Polka" meme]], specifically the [[Music/{{Vocaloid}} Hatsune Miku]] version).
** Doof stops Vanessa to tell her she has all the traveler's checks, a parody of the American Express commercials from the 1980s and 1990s featuring Creator/KarlMalden.
** "[[Film/RaidersOfTheLostArk Start the plane! Start the plane! Start the plane!]]"
** When Candace sees Jeremy in Paris hanging out with other girls, a sad mime lets a [[Film/TheRedBalloon red balloon]] float away.
--->'''French Vendor''': Hey, you! Stop letting my balloons go!
** "I guess [[Film/{{Casablanca}} we'll always have giant plastic baguettes]]."
** While searching for something to get them off the island, Phineas finds [[WesternAnimation/SpongeBobSquarePants a sponge and a starfish]].
** When the gang appear to fly on their bikes, it mimics the iconic scene from ''Film/ETTheExtraTerrestrial''.
** This isn't the first time a hotel in a Disney show was named "Hotel Poubelle". The name was previously used in the ''WesternAnimation/AmericanDragonJakeLong'' episode "Jake Takes the Cake".
** "[[Theatre/MyFairLady She's got it! By jove, I think she's got it!]]"
* SomethingWeForgot: At the end of the titular song, Phineas realizes, "Hey, where's Perry?"
-->'''French Waiter''': Would you like your ([[BriefAccentImitation Perry noise]]) with or without ''fromage''?
* SpaghettiKiss: Subverted. During "Bouncin' Around the World", when the plane bounces over Italy, Buford and Baljeet share a strip of spaghetti and almost kiss, aggravating Buford and prompting him to dump the entire plate of noodles all over Baljeet's face.
* SpecialGuest: Clay Aiken and Chaka Khan as themselves.
* StealthHiBye: The rope-jumping robot suddenly disappears from the backyard offscreen between the time Perry returns and the time Linda comes. A later scene shows it got caught on the tail of the plane Doofenshmirtz and Vanessa are taking to Tokyo.
* StrangelySpecificHoroscope: Buford says his horoscope said he'd carry an ox, but he initially dismissed it as being figurative.
* SureLetsGoWithThat: This exchange after Vanessa arrives with a scooter to take her and Ferb to the Eiffel Tower.
-->'''Phineas:''' Vanessa, you rented a scooter!\\
'''Vanessa:''' Uh, yeah. "Rented."
* TakeThat: The show takes a swipe at their rival series when Phineas finds [[WesternAnimation/SpongeBobSquarePants a sponge and a starfish]]. (Though it should be noted that co-creator Dan Povenmire was previously a writer on the show.)
* TeasingTheSubstituteTeacher: Played with. The gang's giant paper plane passes through an annual substitute teachers' convention meet, much to the annoyance of the teacher who's hosting. (Sadly, this joke got lost in the Creator/DisneyPlus version.)
* TemptingFate: After the boys managed to fix the jet and travel away from Paris, Phineas says that the gang might arrive in Danville ahead of time, "barring any unforeseen mishaps." As soon as he says that, Ferb's steering wheel breaks, and then the jet's engine falls off, and then the vehicle continues to break apart until only the seats and one rubber band remain, and then the gang gets stranded on an island.
* TimeZonesDoNotExist: Averted, since the main plot is the kids traveling at the speed of Earth's rotation to have a super-fun, twenty-four hour day by taking advantage of the time zones to always be in daylight all day.
* TitleDrop: By Candace during her conversation with Phineas when she sees Jeremy talking to friends in Paris. Also, the titular "Summer Belongs to You!" song at the very end of the episode.
* TokyoTower: The tower makes an appearance in the episode, with Vanessa (who wanted to go to Paris instead) lampshading the fact that it resembles the Eiffel Tower.
* TooUpsetToCreate: Phineas is so upset that he might fail that he starts snapping at everyone around him and his usual ability to think up insane solutions on the fly won't work. Isabella has to snap him out of it as he gets more and more desperate.
-->'''Phineas''': Look, [[WesternAnimation/SpongeBobSquarePants a sponge and a starfish]]! There's gotta be something we can make out of this! (''throws them away'') [[TakeThat Ah, no, that's ridiculous!]]
* TrackingDevice: Doof follows Vanessa using the earrings he gave her which also work as tracking devices.
* TrailersAlwaysSpoil: Almost ''every'' promo spoils the ending, especially the final concert at the end. Said scene was even spoiled in a promo during the final commercial break in the original airing.
* TriumphantReprise: Once the gang finally reach the backyard in time for sundown, the background singers briefly sing "I Believe We Can" again.
* TruckDriversGearChange: The titular song has different keys for the verses, pre-chorus, and chorus, but after Ferb goes, "Bay-bee, bay-bee, bay-bee, bay-bee...", the chorus goes up a key.
* {{Unishment}}: If Buford loses TheBet with Phineas, he suggests that he has to own up by eating a bug. Phineas is quick to pint out to him, that Buford would actually eat a bug on the spot if he asked, to which Buford insists, that he really just wants to eat a bug. And in the end [[BrickJoke he does]].
* VerbalBackspace: When Candace finds out what Phineas and the gang are about to do, she first says, "You're not going anywhere!", but then sees that they are going to Paris, which is where Jeremy is, and says, "Like I was saying, you're not going anywhere... without me!"
* WatchingTheSunset: Discussed and later defied. Phineas has wagered his entire worldview on getting the group around the world by the end of the day, but as the sun is almost set they've crashed on a deserted island with no apparent way off. Just as Isabella (who has a crush on him) is forlornly wishing that he would give up and just watch the sunset with her, Phineas loses all hope and falls to the ground next to her, weakly saying that they can "[[IronicEcho at least watch this beautiful sunset together]]." Hearing the despair in his voice makes Isabella jump up and give a RousingSpeech that winds up saving the whole enterprise.
* WaxingLyrical: As the gang prepares the paper plane slingshot to take them back home, Phineas stretches the rubber band "with super special dens-i-ty", singing the tune from the earlier number "Rubber Bands, Rubber Balls".
* WeirdTradeUnion: Adyson instructs everyone to get the backyard ready for their return, including Clay Aiken and Chaka Khan, even though they are only booked for the hour.
* WholePlotReference: This episode is an updated and modified version of ''Literature/AroundTheWorldInEightyDays,'' with a wager to travel around the world, numerous unexpected setbacks, and finally coming down to the last tick of the clock.
* YouDidntSeeThat: After Buford speaks fluent French to a restaurant staff, he threatens Baljeet to not tell anyone about it.
* YourHeadAsplode: Happens to Isabella in one scene, after she gets so upset by Phineas not noticing her romantic approaches. She was actually imagining it.
-->'''Phineas''': Isabella!\\
''([[DaydreamSurprise Isabella opens her eyes]])''\\
'''Phineas''': Isabella, are you okay?\\
''({{Beat}})''\\
'''Isabella''': [[DeadpanSnarker Peachy.]]
----