%% SEEN IT BEFORE?: If it happens in different episodes to the same character, you could put the trope in that character's description on the Characters page.
%% Remember: DON'T ADD SPOILERS FOR FUTURE EPISODES, even under tags. Those go on the later episode pages.
[[caption-width-right:350:[[VideoGame/NoTimeToExplain I am you from the future! There's no time to explain!]][[note]]Though there would have been if Past Twilight could've keep her mouth shut for a few seconds.[[/note]]]]

->'''Twilight Sparkle:''' Who are you? I mean, you're me, but I'm me too. How can there be two "me"s? It's not scientifically possible. ''[[HypocriticalHumor You are not scientifically possible!]]''

->Written by M.A. Larson

Spike is leading the love of his life, Rarity, through a wonderful world made of ice cream... until he hears the clopping of hooves, whereupon he wakes up to find Twilight nervously pacing at 3:00 am. Turns out she's discomforted because, after planning her schedule for the month, she didn't allocate any time to work on ''next'' month's schedule, [[FauxHorrific so now her whole year could be thrown off]]. Annoyed, Spike returns to bed in hopes of returning to ice cream land.

Later that morning, Twilight is still fixing her various schedules when a burst of purple magic abruptly goes off in the middle of the room. It subsides to reveal a purple unicorn with a torn spy suit, an eye patch, a disheveled mane, a bandaged head, and a scar on her face -- Twilight herself! Now there are ''two'' Twilights, except one's from the future, and looks like she just walked off the set of ''Film/EscapeFromNewYork''. Is she perhaps from some distant time, when Equestria is embroiled in some sort of epic pony war?

->'''Future Twilight:''' Actually, I'm from next Tuesday morning.

Future!Twilight [[OminousMessageFromTheFuture has an important message to convey]], but Present!Twilight is so excited at the prospect of TimeTravel that she's full of questions. Future!Twilight has to put a hoof to her mouth to get her past self to shut up, but before she can deliver her message, she disappears in a flash of light. Suddenly realizing that she should have listened to herself, Twilight is charged up to prevent whatever unspecified cataclysm that's about to befall Equestria!

Rushing outside, Twilight warns Ponyville of the impending calamity; everypony laughs at first[[note]]including a [[Series/DoctorWho certain brown pony with an hourglass cutie mark]][[/note]], but she soon convinces them to take her warning seriously. The pegasi search the skies across Equestria, while everypony else fixes every crack, loose bolt, and [[ArsonMurderAndJaywalking stray hair]] across Ponyville. But even taking every preventive measure doesn't seem enough...

Suddenly, Cerberus, Guardian of the Gates of Tartarus -- where all the most evil beings in Equestria are kept -- appears in the middle of Ponyville! ''He'' must be the disaster! Steeling herself, Twilight prepares for battle... until Fluttershy tames the beast by tickling his tummy. Realizing that Tartarus is still unprotected, Twilight borrows a ball from Pinkie Pie[[note]]she keeps them hidden around Ponyville [[CrazyPrepared just in case]][[/note]], then lures the big lug home.

Twilight Sparkle returns home the next morning, whereupon Spike burps up a "lost dog" flyer from Princess Celestia, which gives her a paper cut on her cheek -- ''[[{{Foreshadowing}} the exact same one her future self had!]]'' Since this means the future ''hasn't'' changed and the great disaster is still to come, Twilight decides to do '''nothing at all''' until Tuesday, not even move. Spike and Rainbow Dash decide to have fun at her expense, with Spike eating ice cream by the tubful and tickling her. Twilight telekinetically tosses Spike away, causing him to accidentally belch fire and scorch Twilight's mane, giving her the same style her future self had! Pony Armageddon is still underway!

Spike suggests a visit to a fortune teller, "Madame Pinkie". [[WebVideo/FriendshipIsWitchcraft With her gypsy magic]], Pinkie Pie tells Twilight thatů she will get a ''really awesome'' birthday present next year. Twilight asks her to use her Pinkie Sense instead, but Pinkie explains that it's only for vague, immediate events -- like a flower pot suddenly falling out of the sky onto Twilight's head.

->'''Pinkie Pie:''' ...Where did that even come from??

Pinkie Pie visits Twilight the next day, who has an epiphany (as well as a bandage) -- disaster can be averted if she monitors ''everything'' until Tuesday! But when Pinkie reminds her that Tuesday is actually ''tomorrow'', Twilight gets into a panic, then ends up looking at the sun through a telescope and blinds herself. While Pinkie provides an emergency eye patch from her secret stashes around town[[note]]you know, [[CrazyPrepared just in case]][[/note]], Twilight decides there's only one thing left to do: ''[[InsaneTrollLogic Stop time itself]]''.

Remembering that Future!Twilight said that the time spells were locked away in the Star Swirl the Bearded Wing of the Canterlot Archives, Twilight takes Spike and Pinkie with her to Canterlot. After donning black catsuits, eating ice cream, sneaking past guards, going in a circle, eating more ice cream, and having a helpful guard let them into the wing, the trio begin a frantic search for the time spells -- but they're too late! Dawn is breaking, Tuesday morning is here! As Twilight realizes she now looks ''exactly'' like her future self, she panics, bracing for the impending disaster...

...and ''nothing happens''. Princess Celestia walks by and says hello. The sun is shining. It's a pretty nice day.

Twilight finally realizes that she's been worrying too much, and pledges to solve problems as they come and let the future handle itself. As Twilight muses that it would have been better if only she had learned this sooner, Pinkie Pie shows a scroll that she found, which can send someone back in time for a few minutes. Twilight decides to use that to warn her past self not to worry about the future.

...''[[StableTimeLoop oh]]'', so ''that's'' where Future Twilight came from! Oh well, it's Past!Twilight's problem now. After a few laughs, the girls head home, especially now that Spike has a stomachache from eating too much ice cream. He had assumed that would be Future!Spike's problem... until he ''became'' Future!Spike.


* AnAesop: An interesting two-fer. Twilight learns not to worry so much about what might happen tomorrow, while Spike (by way of an ice cream stomachache) learns not to just shrug off consequences to the future.
* AesopAmnesia: In ''just'' the [[Recap/MyLittlePonyFriendshipIsMagicS2E19PuttingYourHoofDown previous episode]], Fluttershy learns to stop being so submissive and stand up for herself, make her voice heard. In this episode, she's seen struggling under the weight of dozens of Pinkie Pie's bags while Pinkie Pie has fun with some balloons. We would need to see the scene in which she and Pinkie Pie decide who carries what to decide for sure.
* TheAlcatraz: Implied with the Gates of Tartarus, as it houses all manner of Equestrian monsters.
* AllForNothing: Played straight, except for the fact that Ponyville's infrastructure got a nice sprucing up with all the preventative maintenance.
* AmusingInjuries: Twilight is the recipient of all of them this episode, slowly turning her into Future Twilight until she catches up with herself. Both Future and Past Twilight play up the injuries for all they're worth, even mistaking a paper cut for a scar.
* {{Anticlimax}}:
** Twilight stands ready to face off against Cerberus all by herself with gusto, only for Fluttershy to tame it easily.
** Twilight also enter full disaster preparedness mode, protecting herself and Spike, as the sun rises on Tuesday, expecting the worst, until Princess Celestia trots by and says hello.
* ArbitrarySkepticism: Twilight claiming that time travel is not scientifically possible. Twilight, of course, is a magical talking unicorn.
* ArsonMurderAndJaywalking: Twilight's checklist for disaster-proofing Equestria includes patching a dam, fixing a bridge, and trimming Pinkie Pie's bangs. That last one could be interpreted as Rarity preventing a "fashion disaster". Or preventing [[Recap/MyLittlePonyFriendshipIsMagicS1E25PartyOfOne what happens when Pinkie's hair gets messed up]].
* BabyTalk: Fluttershy to Cerberus. "Who's a good boy?"
* BadFuture: Comically subverted. Future Twilight just wanted to tell Past Twilight not to worry about the future.
* {{Bathos}}: Twilight's dire warning kind of loses its effect with the novelty Groucho glasses.
* BehindAStick: Twilight hides behind a tree that clearly should not be able to hide her while sneaking around. Pinkie and Spike don't bother.
* BigFriendlyDog: Cerberus, once Fluttershy is involved.
* BreathWeapon: Future Twilight's shaggy haircut is the result of Spike accidentally fire-breathing on Twilight's mane.
* BritishRoyalGuards: The way Spike and Rainbow Dash act toward Twilight when she decides not to move.
* CallBack: [[Recap/MyLittlePonyFriendshipIsMagicS2E13HearthsWarmingEve Star Swirl the Bearded]] is mentioned once again, and the Star Swirl "wing" in the Canterlot Library that was mentioned is basically just an extra-secured room -- which is as big as the entire Ponyville library. A section of the library named after him was alluded to [[Recap/MyLittlePonyFriendshipIsMagicS2E4LunaEclipsed from the start]].
* CockADoodleDawn: We don't see the bird, but we do hear it in the distance when the sun comes up on Tuesday.
* ComicallyMissingThePoint: Pinkie doesn't understand why Twilight has to sneak into the Canterlot Archives (because she thinks Twilight wants to find out about the present she's going to get). An unusual example in that it makes ''more'' sense than the real reason, since Twilight has full access and isn't doing anything wrong.
* CompressedHair:
** Pinkie manages to fit her unruly mane into a tight-fitting costume [[Recap/MyLittlePonyFriendshipIsMagicS2E4LunaEclipsed again]].
** In the same vein, Spike's able to get his spikes to lay flat within the costume.
* CompressedVice: Spike seems awfully fixated on ice cream this week. Unlike candy in [[Recap/MyLittlePonyFriendshipIsMagicS2E4LunaEclipsed "Luna Eclipsed"]], there's no real motivation here. He initially does it to tease Twilight, and just because the effects will be someone else's problem -- specifically, Future Spike's.
* ContinuityNod:
** Even though most of Ponyville laughs at Twilight when she says she received a message from the future, the rest of the Mane Six are more than ready to listen to her. Why? Because [[Recap/MyLittlePonyFriendshipIsMagicS2E3LessonZero of what happened the last time they didn't take her concerns seriously]].
** [[Recap/MyLittlePonyFriendshipIsMagicS1E15FeelingPinkieKeen Once again, Pinkie Pie uses her Pinkie Sense, and once again, it targets Twilight]]. [[Recap/MyLittlePonyFriendshipIsMagicS2E8TheMysteriousMareDoWell And she uses it to detect a falling flower pot]]. [[LampshadeHanging ...which sort of appears out of nowhere, indoors]]. Perhaps Pinkie needed a [[WrongContextMagic soapbox]] when expounding on the capabilities of her Pinkie Sense to Twilight.
** [[Recap/MyLittlePonyFriendshipIsMagicS1E15FeelingPinkieKeen Twilight thinks something is not scientifically possible]].
** The [[Recap/MyLittlePonyFriendshipIsMagicS2E8TheMysteriousMareDoWell dam]] makes a reappearance, having sprung another leak. They should get that checked out further.
** Twilight's [[Recap/MyLittlePonyFriendshipIsMagicS1E11WinterWrapUp organization skills]] are used to disaster-proof Equestria.
** This wouldn't be the first time Twilight started [[Recap/MyLittlePonyFriendshipIsMagicS2E3LessonZero teleporting more often when she got worked up over something]].
** Fluttershy easily tames [[Recap/MyLittlePonyFriendshipIsMagicS1E2ElementsOfHarmony another mythical creature with a little kindness]].
** [[Recap/MyLittlePonyFriendshipIsMagicS2E16ReadItAndWeep Ponies sneaking around in]] [[SpyCatsuit black spy catsuits]]. Now with added dragon.
** [[Recap/MyLittlePonyFriendshipIsMagicS2E4LunaEclipsed Pinkie Pie loves being scared]]. "Anypony else want to panic with me?"
** [[Recap/MyLittlePonyFriendshipIsMagicS1E8LookBeforeYouSleep Applejack and Rarity working together]]. With Applejack doing most of the work and Rarity keeping her clean.
** [[Recap/MyLittlePonyFriendshipIsMagicS1E4ApplebuckSeason This isn't the first time one of the Mane Six went a week without sleep]].
** [[Recap/MyLittlePonyFriendshipIsMagicS2E4LunaEclipsed Pinkie Pie is called a genius again!]]
* CrazyPrepared:
** Pinkie Pie has stashes of balls and eyepatches all over Ponyville in case of ball or eyepatch emergencies.
** Twilight attempts to be this to avoid the disaster. The town being well-prepared to jump in to help is due to experience from being around the Mane Cast.
* DreamSequence: Spike during the ColdOpening.
* DudeWheresMyRespect: ''Averted'' for once. Twilight doesn't make the best start to explaining to the town that she just got a warning about some unknown disaster from her future self (because of what she was wearing at that time), but once it's clear that she's serious, she's afforded all the respect a pony who saved the world twice deserves. Also, when in Canterlot Castle, a guard recognizes Twilight and lets her into the restricted archive wing she was trying to get into without any grief.
* EEqualsMCHammer: Averted. While at first glance, the equations on Twilight's blackboard as she tries to understand how to stop time look like rubbish, they're actually [[http://i.minus.com/ivO6z9efeJpgY.jpg legitimate physics equations on time dilation]].
* ExactlyWhatItSaysOnTheTin: This episode ''is'' about time!
* EyepatchAfterTimeSkip: Future Twilight. Turns out it's because she looked into the sun with a telescope.
* EyeScream: That eye patch on Future Twilight? She trusted Pinkie to calibrate her telescope so it would be safe to look at the sun. You can connect the dots from there. Though Pinkie ''did'' explain that she had no idea whether she did what Twilight asked.
* FacePalm: Well, Face Hoof -- Twilight, upon finally realizing that her time-traveling is what caused her ordeal.
* FailedASpotCheck: Twilight doesn't notice that the Star Swirl the Bearded Wing is right across the hall from where they came in.
-->'''Twilight:''' I don't understand; it's supposed to be right here. How are we supposed to find it now?\\
'''Pinkie Pie:''' Maybe we should ask somepony in the Star Swirl the Bearded Wing.\\
'''Twilight:''' [[LampshadeHanging Huh, how did I miss that?]]
* {{Fangirl}}: Twilight, of herself, and why Future!Twilight can't get a word in edgewise.
* FantasticLightSource: The unicorn guards use a magic glow from their horn just like a flashlight.
* FlowerPotDrop: When Twilight asks the gypsy Pinkie Pie if she can use her Pinkie Sense to detect what will happen in the future, Pinkie explains that it's only for immediate emergencies. Cue "twitchy tail" and flowerpot to Twilight's head.
-->'''Pinkie:''' Like that. (''pause'') [[LampshadeHanging Where did that even come from?]]
* FluffyTamer:
** Fluttershy has always been one, but this episode makes it comically literal.
** Also an implied trait of Princess Celestia. She sends out ''lost dog'' flyers for Cerberus, meaning he's her pet.
* ForgotICouldFly: Twilight could have just teleported through the locked door to the Star Swirl Wing. She's also teleported both Spike and Pinkie before, so she could have brought them with her.
* FortuneTeller: Pinkie turns out to be working as one.
* FutureBadass: {{Parodied|Trope}}. Future Twilight comes from only a few days in the future, and she only looks the way she does because of a series of random accidents.
* FutureMeScaresMe: Future Twilight's appearance scares Twilight a bit before she becomes thrilled with the whole TimeTravel thing.
* GettingCrapPastTheRadar: Just before Twilight confronts Cerberus, Cerberus has one of his back legs lifted, obviously about to pee.
* GoMadFromTheRevelation: Twilight drives herself crazy with worry over her future self's vague warning.
%% NOT A GroundhogDayLoop: Twilight is '''not''' repeating the events; it's just a StableTimeLoop. Don't shoehorn it, please.
* TheGuardsMustBeCrazy: Comically subverted. After Twilight tries hard to sneak into a locked library section containing powerful magical artifacts, a guard she bumps into just lets her in... because as Princess Celestia's protégé, she's allowed in there, which Twilight herself forgets.
* {{Hammerspace}}:
** After finishing her checklist for disaster-proofing Ponyville, Twilight puts her scroll away. The hammerspacing comes in because [[http://chzbronies.files.wordpress.com/2012/03/73c1a569-e501-4f6e-806b-f7926315d371.jpg Twilight doesn't have anything else with her]] that would store the scroll.
** Spike's bottomless supply of ice cream, especially when wearing the SpyCatsuit. He keeps topping off his ice cream cone from some unseen source.
* HardWorkMontage: While everypony is disaster-proofing Ponyville.
* HellHound: [[Myth/ClassicalMythology Cerberus]] makes an appearance in this episode and is quickly tamed by [[FluffyTamer Fluttershy]] before he can do any harm.
* HelpYourSelfInTheFuture: Twilight tries, but quite literally gets in her own way.
* HighlyVisibleNinja: Twilight, Pinkie and Spike aren't quite as sneaky as they think. {{Downplayed}} for Twilight, as she does spend most of the sneaking out of sight. The guards spot her anyway.
* HypocriticalHumor:
** When Spike addresses that Twilight's pacing has worn a groove into the floor.
--->'''Twilight:''' I don't have time for another one of your lectures, Spike! This is serious!\\
'''Spike:''' ''My'' lectures?
** Meta example: One of the ponies who laugh at Twilight's claim of being warned by her future self is [[Series/DoctorWho Doctor Whooves]].
* IHatePastMe: Future Twilight is frustrated by her past self's refusal to calm down and listen to what she has to say.
-->'''Twilight:''' I can't believe I just did that!
* InsaneTrollLogic: Twilight first assumes that Future Twilight's warning is dire simply because of her appearance, and then goes through four phases to avert the future: Do something to try to stop it, do nothing to cause it happen, use magic to try to figure out what happens, and use science to try to figure out what happens. Finally, she decides the only way to stop the disaster is to ''stop time itself'' so Tuesday morning never comes.
* TheInsomniac: Twilight becomes an Obsessive Insomniac, spending one straight week without sleep monitoring ''everything'', trying to catch the big disaster that her future self wanted to warn her about. Even Pinkie Pie is concerned. She also ''starts'' the episode as an Obsessive Insomniac, fretting over her schedule.
-->'''Twilight Sparkle:''' Frankly, I don't know how ''you'' can sleep at a time like this!\\
'''Spike:''' Three A.M.?
* ItIsPronouncedTroPay: Twilight pronounces ''Tartarus'' as the Greek "Tar-Tar-Os", and not "Tar-tur-us" like is most common in English.
* ItOnlyWorksOnce: The time-travel spell is specifically stated to work only once, hence its temporariness.
* LampshadeHanging: Quite a lot in this episode.
--> '''Pinkie:''' (''[[FlowerPotDrop flower pot falls from nowhere]]'') Where did that even come from?\\\
'''Twilight:''' (''[[FailedASpotCheck notices the Star Swirl the Bearded Wing is right across the hall]]'') Huh, how did I miss that?\\\
'''Twilight:''' [[UnusuallyUninterestingSight Why isn't anypony surprised to see me sneaking around in here?]]
* MadnessMakeover: {{Inverted|Trope}}, as instead of Twilight's looks becoming more wild as she loses it, it's her madness that increases as her appearance approaches that of Future!Twilight.
* MagicAIsMagicA: Why Pinkie Pie's [[SpiderSense Pinkie Sense]] isn't useful in Twilight's situation. It works to predict vague and immediate events, nothing else.
* MindScrew: [[DownplayedTrope Just a little bit]], which is for the best since we have the target demographic's sanity to watch out for. At the end of the episode, Twilight just wanted to warn her past self about not worrying the future, a lesson she would have not learned if her future self didn't make her paranoid. Though she was already worried about the future ''before'' Future!Twilight showed up. Even worse is how Twilight got the knowledge of where the scrolls are: Future Twilight got it from Past, who got it from Future, who got it from Past, who got it from Future, who got it from Past....
* MundaneFantastic: In Princess Celestia's mail to Twilight, she refers to Cerberus having left the gates of Tartarus as a "lost dog" matter.
* MundaneUtility:
** Unicorn horns can be used as flashlights. [[Recap/MyLittlePonyFriendshipIsMagicS1E6BoastBusters It's not the first time we've seen this utility, either]].
** Also, you have one time access to a magic spell that will let you travel back in time and prevent any past event; naturally you use it to tell yourself a week ago to chill out.
* MutilationConga: Twilight's efforts to stop the "impending disaster" result in her looking more and more like her future self as the episode goes on.
* MyFutureSelfAndMe: At the beginning of the episode and the end from the other perspective.
* NiceJobBreakingItHero:
** Twilight's incessant questions about time travel cause her not to hear what her future self wants to warn her about. On the other hoof, if Twilight hadn't gone back in time in the first place, [[StableTimeLoop none of this would have happened]].
** At the same time, averted: The town has had a thorough maintenance period to be ready for the next major disaster, and Cerberus, the Guardian of the Gates to Tartarus, is back where he belongs. All are unrelated to Twilight's original goal, but they have beneficial side effects.
* NobodyHereButUsStatues: Twilight, Pinkie and Spike pose as statues in order to hide from the guards, even though they didn't really need to. The guards probably know it's them.
* NoodleIncident: Twilight considers trimming Pinkie's mane to be an important part of disaster-proofing the town. Knowing Pinkie, there's quite a story behind that.
* OffModel: Several times throughout the "distaster-proof Equestria" montage, Twilight is levitating a list to mark the progress, but her horn isn't glowing.
* OffscreenMomentOfAwesome: Twilight's journey to return Cerberus to the Gates of Tartarus is never shown, but considering how disheveled she is upon her return, it wasn't easy.
* OminousMessageFromTheFuture: What Twilight initially thinks the aborted message from her future self was. Turns out to not be so ominous after all. Not that Twilight allowed her future self to get a word in edgewise to find out.
* OohMeAccentsSlipping:
** Twilight's voice is a bit off in a few scenes, sounding more like Tara Strong's natural voice.
** Rainbow Dash's is unusually deep in the scene where Twilight is trying not to move.
* ParanoiaGambit: Future Twilight accidentally doing this is what kickstarts the episode's plot.
* ParentalBonus:
** While a certain [[Franchise/HarryPotter other wizard]] has helped the target demographic know about Cerberus, the mythological concept of Tartarus holding back ancient evils is likely a tad above them.
** Also, When Pinkie, Twilight and Spike are going through to the Starswirl The Bearded Wing, Spike questions "[[Music/TheWall Isn't this where we came in?]]"
* PreAsskickingOneLiner: Averted. Before Twilight can kick some ass, Fluttershy calms the beast down.
-->'''Twilight:''' Hey Cerberus! You look like you could use some obedience training. Magic obedience training!
* PunctuatedForEmphasis: Twilight gets a few, hinting of her mental state.
-->'''Twilight:''' I. DON'T. KNOW.\\\
'''Twilight:''' Monitor. ''Everything''.
* PunnyName: This episode gives us two new towns: [[UsefulNotes/LasVegas Las Pegasus]] and [[UsefulNotes/{{Baltimore}} Baltimare]].
* RealityEnsues: Twilight forgets a basic fact about herself when she breaks into the Archives: she is the personal protégé of Princess Celestia herself, who else outside maybe senior government ministers would have more privileged access than her? Though it still bothers her that they aren't so surprised by her sneaking around.
* RippleEffectIndicator: Twilight's physical appearance over the week.
* RunningGag:
** Spike eating ice cream.
** Pinkie Pie insists that Twilight is searching for her "[[ComicallyMissingThePoint really cool birthday present]]" as opposed to the meaning of her future.
* SadlyMythtaken: Averted, for the most part. Instead of going with the underworld as the usual Greek stand-in for Hell, they mention [[http://en.wikipedia.org/wiki/Tartarus Tartarus]] the ''actual'' Greek equivalent. Of course, Cerberus is the one guarding it instead of the underworld, but that can be overlooked; after all, [[Recap/MyLittlePonyFriendshipIsMagicS1E15FeelingPinkieKeen the Hydra is busy marauding Froggy Bottom Bog]].
* SanitySlippage: [[Recap/MyLittlePonyFriendshipIsMagicS2E3LessonZero Poor Twilight can't catch a break]].
* ScheduleFanatic: While Twilight is known for this sort of thing, this episode kicks it up a notch when, at the start the episode, she's seen obsessing over the fact that, in this month's schedule, she didn't make time to make next month's schedule.
* SchizoTech: That hydroelectric (or [[{{Magitek}} hydroarcanic]]) dam [[Recap/MyLittlePonyFriendshipIsMagicS2E8TheMysteriousMareDoWell is back again]].
* SealedEvilInACan: The episode reveals that there're a bunch of these things sealed away in Tartarus that are guarded by Cerberus.
* SelfFulfillingProphecy: All of Twilight's worrying results in her acquiring all the ominous physical differences that Future!Twilight had.
* ShaggyDogStory: The episode is a week's worth of worry, strife and grief, which all led up to the dramatic reveal of a very pretty sunrise. It was all caused by Twilight using magic to warn herself (unsuccessfully) to not commit a bunch of worry, strife and grief over the next week.
* ShoutOut:
** Future Twilight's arrival is reminiscent of ''Franchise/{{Terminator}}''.
--->'''Twilight:''' Is there some sort of epic pony war in the distant future or something?
** Future Twilight's outfit is based on [[Film/EscapeFromNewYork Snake Pliskenn's]], per [[http://www.kidzworld.com/article/29087-my-little-pony-friendship-is-magic-and-equestria-girls-top-10-easter-eggs Word of God]].
** It also nodes to Solid Snake from the ''Franchise/MetalGear'' games, including a ''sneaking mission'' and [[VideoGame/MetalGearSolid4 posing as a statue.]] All that's missing is the cardboard box. The Metal Gear explanation doubles as a subtle ActorAllusion[[invoked]]; one of the many characters voiced by Tara Strong is [[VideoGame/MetalGearSolidPeaceWalker Peace Walker's]] Paz.
** Twilight's [[WesternAnimation/DuckTales pacing makes a groove around a statue]].
** The music playing during Twilight's encounter with herself is a [[SuspiciouslySimilarSong near-copy]] of the ''Series/DoctorWho'' theme "I am the Doctor". Also, before Future!Twilight materializes, the iconic "house key scraping piano string" sound of the [=TARDIS=] can be heard -- though some have contended that it also resembles the Linking Book sound effect from ''VideoGame/{{Myst}}''.
** This episode shares some similarities with the ''WesternAnimation/{{Duckman}}'' episode "The Once and Future Duck". In both episodes, the main characters get warnings from future selves, try to avert disaster by not moving, and learn in the end not to stress out about the future.
** Right before the StableTimeLoop happens, the resident bookworm concludes she has to learn [[Literature/HarryPotterAndThePrisonerOfAzkaban two subjects at once]].
** After arriving back where they started in the Canterlot Archives, Spike asks "[[Music/TheWall isn't this where we came in?]]"
* ShownTheirWork:
** Those equations on the blackboard from TimeDilation.
** From astronomy, Twilight's telescope directions are [[AvertedTrope not]] TechnoBabble, and the Horsehead Nebula really exists.
* SpiderSense: [[Recap/MyLittlePonyFriendshipIsMagicS1E15FeelingPinkieKeen The Pinkie Sense makes a comeback.]]
* SpyCatsuit: Twilight, Pinkie Pie and ''Spike'' all don one each. {{Lampshaded}}.
-->'''Spike:''' I don't know why we have to wear ''these'' things, either.\\
'''Pinkie Pie:''' Aren't we wearing them for fun?
* StableTimeLoop: The reason Twilight freaks out about the future is because her future self comes back in time in order to tell her not to freak out about the future.
* StaggeredZoom: Occurs on Twilight when she realizes she now looks exactly like Future Twilight and the "disaster" will happen anytime soon.
* StealthPun: Spike: "Twilight! It's over!" Said to Twilight when twilight is, um, over.
* StockEpisodeTitles: Two other shows have used this as an episode title: ''WesternAnimation/PhineasAndFerb'' and ''WesternAnimation/ThePenguinsOfMadagascar''.
* SuperOCD: Twilight obsessing about not scheduling time to schedule her next schedule. She's also so caught up in tracking down the Star Swirl Wing by her calculations that she fails to notice it right at the point they started.
* TemporalParadox: Of the "Information Loop" variety: Future Twilight tells her past self where she found the spell to travel in time, which is why Twilight knows where to look for time manipulation spells when she needs one, which is why she ends up sending herself to the past and telling her past self where she found the spell to travel in time, which is why Past Twilight knows where to look for time manipulation spells, [[Film/AustinPowers oh, no, I've gone cross-eyed...]]
* TemptingFate: Twilight warns Spike that he will get a stomach ache if he eats too much ice cream. Spike blows it off by saying it's Future Spike's problem and it turns out that's exactly what happens to him.
* ThisIsNoTimeForKnitting: In the opening, Twilight can't imagine how Spike can think of sleeping at a time like this:
-->'''Spike:''' "Three AM?"
* TickleTorture: Spike does this briefly to Twilight when she attempts to avert disaster by not moving at all.
* TimeStandsStill: Invoked, but doesn't happen.
* TimeTravel: The plot kicks off because Twilight travels back in time to tell herself something.
* TimeTravelTenseTrouble: Some of the dialog raises this issue, and Spike's ice cream tummyache is a direct play on that, assuming that it would have been Future Spike's problem.
-->'''Twilight:''' What a mess she is! Or I am. Or... will be!
* ToHellAndBack: Lampshaded. After disaster-proofing Equestria, Twilight comments that "Future Twilight looked like she'd been through a horrible ordeal." Moments later, she's off on an "epic adventure" to return Cerberus to the gates of Tartarus.
* TookALevelInBadass: Twilight, who's taken enough levels that she faces Cerberus by herself.
* TwentyMinutesIntoTheFuture: Twilight at first thinks her future self is from the distant future. [[NextSundayAD She's from next Tuesday.]]
* UnnecessaryCombatRoll: Twilight does some while sneaking around the archive.
* UnusuallyUninterestingSight:
** Twilight assumes the Canterlot Archives will be heavily guarded and thus she'll need to sneak in, hence the SpyCatsuit. She seems to have completely forgotten that it isn't out of place for Celestia's personal student to be seen there.
** Additionally, the guard pony and Celestia don't bat an eye at seeing a disheveled Twilight in torn catsuit acting like she is in a spy movie. Celestia even compliments her "new" hairstyle.
--->'''Twilight:''' [[LampshadeHanging Why isn't anypony surprised to see me sneaking around in here?]]
** The guard also doesn't bat an eye at the trio's statue impressions. One might assume that he went "[[WeirdnessCoupon Oh, it's Pinkie Pie]]" and moved on.
* UrineTrouble: Narrowly {{averted|Trope}} when Twilight calls Cerberus away from doing his business on the ice cream store.
* WhatHappenedToTheMouse: Twilight's scheduling conflict is never brought up after she receives the visit from her future self. Likely made worse since "deal with warning from the future" was ''not'' on her original schedule. Though seeing no "impending disaster" was going to happen helped her learn to stop worrying about the future.
* WholeCostumeReference: As mentioned in the ShoutOut section, Twilight ends the episode in [[VideoGame/MetalGearSolid4GunsOfThePatriots Old Snake's getup]], complete with end game battle damage.
* YouAlreadyChangedThePast: Everything that Future Twilight tried to warn Twilight about came to pass anyway.
* YouCanPanicNow:
** Pinkie Pie ask if anyone wants to panic with her when Twilight is telling everyone about the warning from Future Twilight.
** She also encourages everypony to panic when Cerberus approaches.
--->'''Pinkie Pie:''' Okay, everypony. Follow my lead: AAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHH!!!
* YouCantFightFate: Twilight attempts to change the future in order to prevent a perceived catastrophe, only as the days progress, signs keep appearing in the form of injuries, leading Twilight to believe the catastrophe is still on its way.