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->'''Illyria:''' Odd. It doesn't exist until it cracks apart.\\
'''Wesley:''' What?\\
'''Illyria:''' Time.
-->-- ''Series/{{Angel}}'', "Time Bomb"

It's already been [[Series/DoctorWho well-established]] that time is like a [[TimeyWimeyBall big ball of wibbly-wobbly, timey-wimey stuff]]. [[TemporalParadox Cause does not lead directly to effect]]; [[GrandfatherParadox you can shoot your own grandfather and in all likelihood get away with it]], [[StableTimeLoop take an active hand in the events that made you who you are]], [[TrickedOutTime and generally abuse time until it cries uncle.]]

But what about universes where time is not quite so wibbly-wobbly or timey-wimey? What about those realities where time is a rigid, orderly, and above all ''fragile'' structure, and some well-meaning fool sets off with a time machine to change history?

Then in all likelihood, you'll have a Time Crash on your hands.

When you've gone and broken ''time'', [[RealityBreakingParadox all bets are off]]. More benign Time Crashes may take the form of a GroundhogDayLoop waiting for someone to find the key which breaks the cycle. In others, cause and effect itself may be shattered, resulting in a FateWorseThanDeath for all affected, if not [[TheEndOfTheWorldAsWeKnowIt complete and utter destruction of the universe itself]].

Garden-variety temporal wedgies need not apply in this trope. This is not about your usual temporal inconveniences, the kind that [[RetGone make your best friend vanish from the time line]], put AdolfHitler [[GodwinsLawOfTimeTravel in the Oval Office]] or make medieval Japanese the ''lingua franca'' of the 21st century -- that is, the sort that can be solved by a simple trip back in time to SetRightWhatOnceWentWrong. A good and proper Time Crash should have some large-scale, [[RealityIsOutToLunch reality-breaking]] effects: holes get punched in the fabric of space-time, the ClockRoaches show up and start eating people, things that should happen one after another happen the other way around instead, or worse, ''simultaneously'', etc.

A Time Crash is not a simple thing to solve, either: usually, it involves either some serious AppliedPhlebotinum or [[MoreDakka enough firepower]] aimed at the right EldritchAbomination...if it can be fixed at all.

A form of RealityBreakingParadox.

''For the ''Series/DoctorWho'' mini-episode which could have ended in this trope, see [[Recap/DoctorWho2007CiNSTimeCrash Recap/DoctorWho2007CiNSTimeCrash]].''

----
!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* In ''LightNovel/HaruhiSuzumiya'', the character creates a Time Crash [[ArcWords 3 years ago]] that prevents human time travelers from going back further than that. Presumably, Yuki's faction has no problem as Yuki mentions very casually that the human's TPDD is an average method of time travelling. Moments later, she leads Kyon and Mikuru into a room and freezes the whole room, stopping time in there. It is maintained, even when Yuki engages in a battle against Ryoko in a data space created by Ryoko.
** Of course, this assumes that she created a Time Crash rather than simply creating an AlternateUniverse for herself which, as a result, has no history before she created it.
** It also assumes that Haruhi was even responsible in the first place. Although it does sound like the sort of thing she ''would'' do.
[[/folder]]

[[folder:Comic Books]]
* In the ''StrontiumDog'' "Max Bubba" story, as Bubba alters time, various meteorological and electrical anomalies occur around him, which the Vikings believe is Ragnarok. Then things start falling into Norway from various points in the future.
* ''ZeroHour'': [[GreenLantern Hal Jordan/Parallax]] deliberately triggers one of these destroying the entire timeline with the purpose of [[InTheirOwnImage rebooting the universe his way]]. Fortunately, some heroes are pulled outside of normal time to deal with it. This results in one of the many {{Cosmic Retcon}}s that Franchise/TheDCU has gone through over the years.
* Happens during ''CrisisOnInfiniteEarths'' when the five remaining Earths (read: Universes) start to converge. As the heroes are trying to halt the process, time gets screwed up mixing people up between universes and different time periods randomly. Then the heroes and the Anti-Monitor race to the beginning of time and battle over Anti-Monitor's desire to become the hand of creation. This results in the remaining Multiverse crashing and being rebooted as a single universe (see PostCrisis for more details.) Notable in that the heroes don't exactly fix everything so much as try to salvage what remains.
** Happens ''again'' in ''InfiniteCrisis'', where some of the people directly involved with the first Crisis are dissatisfied with its results, and so they temporarily divide the one stable universe into several unstable ones again, then mix it back together after shuffling the parts around a bit.
** During ''Infinite Crisis'', the JusticeSocietyOfAmerica had a story arc in which they traveled back in time. During the journey to the present, they hit the Time Crash created by the original Crisis.
* Back when ''ComicBook/TheDandy'' had adventure comic strips, one of them was about a group of scientists creating a time machine whose [[MacGuffin vital component]] was a crystal. They attempted to test it by sending a plant one minute into the future, but this caused the machine to explode and fling fragments of the crystal throughout history. The scientists' children had to travel to different periods to retrieve the fragments; in the meantime, the explosion caused a series of "Timequakes" which resulted in people and things from across history breaking into the wrong time. For example, Literature/TheThreeMusketeers appearing in the Trojan War.
* In {{Marvel}}'s ''ComicBook/SecretWars'', Reed Richards theorizes that a Time Crash could kill even the all-powerful Beyonder.
* In DC's short-lived [[TheNineties Ninties]] series ''Chronos,'' apparently a pretty ugly one happens at some point in the distant future, and then gets resolved. When the time-traveling hero, Walker Gabriel, wants to lay low for a while and avoid pursuit by other time travelers, he goes to this era. He's shown having a conversation at a bar, and in every panel, the person he's having the conversation with gets replaced with someone else as history is constantly shifting. Walker (who has RippleEffectProofMemory as one of his powers) just rolls with it and keeps the conversation moving.
[[/folder]]

[[folder:Fanfiction]]
* ''FanFic/TheInfiniteLoops'' were started up because of one of these. [[WorldTree Yggdrissal, the magical tree computer that runs the multiverse]], was heavily damaged by ''[[NothingIsScarier something]]'' and the admins put everyone in a time loop while they tried to fix things.
** Lesser versions have occurred thanks to actions within the loops. This is usually an excuse to shake more "loopers" into circulation, but the destructive effects are not glossed over.
* The ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic [[http://www.fimfiction.net/story/145711/hard-reset-2-reset-harder Hard Reset 2: Reset Harder]], which starts out with the premise of multiple intersecting time loops interfering with each other, ups the ante even further when [[spoiler: Luna kills Twilight so hard as to obliterate her from existence]]. Her time loop resets without a looper, which causes recursive resets that spawn an infinite number of paradox timelines. Fortunately, [[spoiler: the Elements of Harmony sacrifice themselves to undo the glitch]].
[[/folder]]

[[folder:Film]]
* The movie ''Film/{{Millennium}}'' concludes with a massive paradox barreling its destructive way into the future whose time travel efforts caused it.
* In the ''Film/BackToTheFuture'' movies, this is a major concern for Doc Brown, although more often than not he'll change the future (or past) for personal reasons. He believes, for instance, that if [[NeverTheSelvesShallMeet present!Jennifer encounters future!Jennifer]], one of two things will happen; Best case scenario, the shock of encountering what is obviously herself will result in an [[http://en.wikipedia.org/wiki/Acute_stress_reaction acute stress reaction]] that will cause her to faint. Worst case scenario? Future!Jennifer will affect present!Jennifer in an irreversible manner, resulting in a chain reaction of effect preceding cause that could destroy the entire universe. [[spoiler: She passes out.]]
** The reasoning is fear of paradox: for example, what if Jennifer seeing her future self faints, falls badly, breaks her neck, and thus can't be there to go back in time to startle herself? If you're a dabbling mad inventor who ''doesn't know'' if paradoxes might do really quite unpleasant things to reality, advocating caution is almost uncharacteristically pragmatic. (How ''do'' you do a controlled experiment to see if some event X destroys the universe, anyway?)
** As a ShoutOut, [[spoiler:Spock Prime]] implies to Kirk that this will happen if he ever meets himself in ''Film/StarTrek''. [[spoiler: As he tells his younger self by the end, he was just misleading the captain.]]
* ''ThePhiladelphiaExperiment'' has this happen as an unanticipated side-effect of experiments in building an InvisibilityCloak. A Navy destroyer from 1943 and an entire Midwestern town from 1984 get [[MassTeleportation sucked into]] the resulting vortex, which has to be stopped (from within) lest it [[TheEndOfTheWorldAsWeKnowIt destroy the entire world]].
[[/folder]]

[[folder:Literature]]
* Literature/{{Discworld}}'s History Monks (the Monks of Time, the [[TheMenInBlack Men in Saffron]], from No Such Monastery) exist to prevent this sort of thing happening. Again. They've managed to piece things back together, but a Time Crash is used to explain why Ankh-Morpork has a Shakespearean theater on the same street as an opera house, and why there have been so many Battles of Koom Valley.
** Fan attempts to create a complete series timeline seem to always end up with inconsistencies - [[WordOfGod the author cites that same Crash as the reason]].
* In Creator/CJCherryh's ''Literature/MorgaineCycle'', it's claimed that any attempt to use the [[CoolGate Gates]] to change the past will result in a catastrophic Time Crash that will destroy civilization on every world that has a Gate, and there may be millions. The reason Morgaine knows this is that [[AfterTheEnd it's happened before]].
* M. Shayne Bell's short story "Lock Down" is about a team of time travelers trying to repair the continuum after one of these.
* ''Literature/ATaleOfTimeCity'' is about three children who want to ''prevent'' this from happening when their town, Time City, falls apart.
* Creator/GregBear's ''Literature/CityAtTheEndOfTime'' is all about a time crash [[spoiler:and an aeon-spanning GambitRoulette to ensure ''something'' will still exist afterwards]].
** This turns into easily the biggest MindScrew in the history of literature, because the Time Crash is taken [[UpToEleven to a logical extreme]]. Trying to preserve the universe during the event allows it to leak back in time, and as a result all alternate timelines collapse one by one, until by the late stage of the book, nearly all of every possible universe (including every timeline the event ''didn't happen in'') is RetGone in a [[NightmareFuel truly creepy]] fashion, and the surviving cast exist in the present, despite having no history; the entire past has been erased. The rest of the book is spent trying to make sure there is still ''enough'' of a future to fix it all in.
* This is the end goal of the villain BKR in {{Creator/Bruce Coville}}'s ''[[RodAlbrightAlienAdventures Alien Adventures]]'' series: to cause time to break down at the moment of his greatest triumph.
* ''Literature/TheWheelOfTime'': Excessive use of balefire would cause the world to dissolve like fog as the Pattern unraveled from the RetGone effect of balefire.
* ''Literature/TheLatheOfHeaven'' ends with something a lot like this happening because to the (ab)use of RealityWarper powers.
* Hal Duncan's ''Literature/TheBookOfAllHours'' duology starts with a very TimeyWimeyBall sort of cosmology that gets utterly trashed by the end of the first book when [[spoiler:nanites loaded with the language of magic and haunted by the spirits of dead gods are set loose and pull a magical GreyGoo scenario on the fabric of space and time]]. The second book picks up with the protagonists wandering between pockets of stability and causality by [[DangerouslyGenreSavvy taking advantage of - and fighting against - stories and cultural narratives]] to get around.
* Played literally, if bizarrely, in Creator/GregEgan's ''Literature/{{Orthogonal}}'' trilogy. Since spacetime in this universe is a [[WrapAround closed loop in all dimensions]], clusters of matter that were thrown in all directions in time as well as space by the Big Bang occasionally collide with other clusters, many of which are traveling in different directions or even [[TitleDrop orthogonally]] to each other in time as well as space, which means they literally have [[TimeIsDangerous infinite velocity relative to each other]]. The plot is driven by one such [[EarthShatteringKaboom impending collision]], which threatens to [[ApocalypseHow annihilate]] the cluster in which the trilogy's cast originates.
[[/folder]]

[[folder:Live Action TV]]
* An episode of the new ''TheOuterLimits'' has a time travel experiment go wrong [[spoiler: after an attempt to weaponize it by a corrupt military official]], which results in a GroundhogDayLoop...a rare GroundhogDayLoop with a time limit. Each iteration grows shorter, and eventually there will be no hope of preventing the Time Crash from destroying the world. [[spoiler: In the end, the disaster is averted, and the man responsible suffers a [[KarmicDeath Karmic]] FateWorseThanDeath, as he's caught forever in the moment of his own annihilation by the malfunctioning time machine.]]
* Parodied in the (as mentioned above) "[[TimeyWimeyBall wibbly-wobbly, timey-wimey]]" Series/DoctorWho universe. In a short made for Children in Need (which WordOfGod says is canon), the Doctor accidentally somehow merges his TARDIS with the TARDIS of [[TheNthDoctor his fifth incarnation]]. Hilarity ensues at first as a starstruck Ten (and a real-life admiring Creator/DavidTennant, who was thrilled to be on the same set with his own childhood favorite Doctor) and a bewildered Five have to stop their inadvertent meeting from ripping a hole in space-time the exact size of Belgium.
** In a less humorous example, Rose causes a Time Crash in ''Father's Day'' when she saves her father from dying at a predetermined time. [[ClockRoaches Flying Killer Time Monkeys]] [[NiceJobBreakingItHero come out and eat everyone on Earth.]]
** Series 5 could almost be considered a deconstruction -- the "total event collapse" at [[Recap/DoctorWhoS31E12ThePandoricaOpens the end]] destroys all of time, ''including'' before the event that caused it (i.e. [[spoiler: the TARDIS exploding]]), cracking but not destroying all of space and time (and having [[RetGone other effects]] as well). This, on top of giving us the season's ArcSymbol, also alerts the rest of the universe to the disaster and prompts them to [[spoiler: form an alliance to stop it, tracing the cracks to the TARDIS and assuming it's the ''Doctor'' that will have caused it]]. When the collapse finally happens, the Doctor doesn't particularly care about ''why'' (and it wasn't finally explained until [[spoiler: ''[[Recap/DoctorWho2013CSTheTimeOfTheDoctor The Time of the Doctor]]'']], about three and a half years later), he just wants to stop it from ever having happened. The results, by the way, are devastating -- Earth is one of only two celestial bodies (the other being the moon) that has ever been in the sky, and by 1996 [[spoiler: what little is left of the universe is starting to fall apart (the [[ArcSymbol cracks]] are reappearing, [[RetGone people are vanishing from history]], and ''history itself'' has begun to collapse]]. In fact, the universe is so mangled that [[spoiler: ''they can't repair it'' -- their only option is to ''completely reboot it'', which involves, among other things, [[RetGone erasing the Doctor from history]]. [[IncrediblyLamePun Quite a literal example, then]].]]
*** Also, in a sort of meta sense, the [[TimeyWimeyBall wibblyness]] of any event to do with the collapse is roughly proportional to how closely related the two are (from River's perspective, the next time she met the Doctor was in [[Recap/DoctorWhoS31E4TheTimeOfAngels the Byzantium]], [[Recap/DoctorWhoS31E5FleshAndStone in the cracked universe]], which was ''[[ResetButton erased from time]]''; directly after the incident, [[spoiler: River's diary is blank]], despite the fact that [[spoiler: her existence hinges on his, so he can't possibly have been erased]]; Amy wakes up the morning after the reset, ''14 years in the future'', and this is ''never explained''). The most likely explanation seems to be that the collapse was so total that it ''[[BeyondTheImpossible broke time travel logic]]''.
** ''The Wedding of River Song'': The entire timeline of the planet goes pear-shaped when [[spoiler: River refuses to kill The Doctor, even though it's meant to be a fixed point in time. Her failure to do so]] results in all of Earth's history happening at once - people travel by intercontinental steam trains and cars tethered to hot air balloons; pterodactyls are a nuisance in public parks; Creator/CharlesDickens is directing the BBC's big Christmas special; WinstonChurchill is ''Caesar'' of the Holy Roman Empire, which is headquartered in London, has classical Roman trappings, and is fighting the Wars of the Roses, and his barber is a Silurian; [=JFK=] and Cleopatra are a known item, and the great pyramid of Giza has an American flag painted on the side and is known as "[[{{Area51}} Area 52]]".
** The BigFinishDoctorWho audio "The Anachronauts" involves the First Doctor's TARDIS being crashed into by some human temporal scientists who had made the first ever time flight, and both groups are then left on a desert island with no time travel. The result at first appears to be this, as the order of cause and effect seems messed up and things that cannot possibly exist (a 'time sprite') begin attacking them. However, this is a subversion, as it turns out that both teams are still inside the TARDIS and it has put the crews in a repair dimension while it attempts to ''stop'' time breaking down as a result of the crash.
* In ''{{Eureka}}'', the latest meddling with time causes one of these, causing 1947 and 2010 to merge at an exponential rate, which would eventually annihilate time itself.
* In [[Recap/StarTrekTheNextGenerationS7E10Parallels one episode]] of ''Series/StarTrekTheNextGeneration'' Worf causes a Time Crash by flying through a NegativeSpaceWedgie, causing millions of starships ''Enterprise'' from different universes to appear in the same place. Fortunately, he manages to fix it before reality is entirely full of ''Enterprises''. Another [[http://memory-alpha.org/en/wiki/We%27ll_Always_Have_Paris_(episode) episode]] had a MadScientist accidentaly rip open time with his experiments, causing temporal hiccups. Way to divide by zero there, buddy.
* One episode of ''{{Sliders}}'' has Quinn meddling in a world where time moves backwards... somehow. He changes the events that lead to his incarceration and the death of a police officer that was the double of someone he loved in his world, and a wormhole akin to ClockRoaches appears. We never know what happened to that world, as the heroes manage to slide out before things get serious, but we know messing with time created that paradox and the professor wonders if "[[TheEndOfTheWorldAsWeKnowIt there'll even be a tomorrow in that world]]".
* A recurring danger in ''{{Torchwood}}''. The Series One finale involves a crash that threatens to collapse all of time together, while one Series Two episode has 1918 and 2008 crashing into each other.
[[/folder]]

[[folder:Multiple Media]]
* In ''Franchise/{{Bionicle}}'', the destruction of the Kanohi Vahi, [[MaskOfPower Mask of Time]], would cause a RealityBreakingParadox with the past, present and future all happening at the same time.
[[/folder]]

[[folder:Pinball]]
* ''Pinball/TimeMachineZaccaria'' depicts the collision of Past and Future eras on the playfield with two tidal waves colliding to form a massive waterspout that dwarfs mountains.
* In ''VideoGame/ProPinballTimeshock'', the player's ultimate goal is to avoid a Time Crash.
[[/folder]]

[[folder:Tabletop Games]]
* In the Looney Labs game ''{{Chrononauts}}'', you play a bunch of time travelers meddling with history. If there are ever 13 unresolved {{Temporal Paradox}}es on the board, the space-time continuum collapses in a PuffOfLogic and everyone loses.
** Unless you're [[ExactlyWhatitsaysOnTheTin Crazy Joe]], who ''wants'' to destroy the universe [[CorruptCorporateExecutive to draw in more business to his extradimensional restaurant chain]]. If he's in the game when a Time Crash happens, he wins.
* In ''TabletopGame/{{Exalted}}'' the Solar Exalted, or... ''someone'' with considerable amounts of power, inadvertently broke reality during the First Age, freezing Creation in time for several years, until the Exalted managed to fix things. Roughly two centuries passed for a group of Dragon Blooded in the Wyld before time and reality managed to rectify itself.
* In the TabletopGame ''TabletopGame/{{Continuum}}'', the rogue time travelers known as Narcissists are called thus because they're self-centered enough that they're trying to ''cause'' these. In fact, the Sahara Desert was created when the Narcissist kingdom of Antedesertium was destroyed in a massive Time Crash called Interregnum. Of course, [[PerspectiveFlip they think]] they're trying to SetRightWhatOnceWentWrong. (Appropriately enough, another name for them is the Crashers.)
* Ontoclysms in ''{{GURPS}}: Infinite Worlds'' start with rewriting history and get more devastating from there.
* The premise of the ''Time Spiral'' block in ''MagicTheGathering'' is basically this: the planewalks of powerful planeswalkers and other high-energy events like blast of the Golgothian Sylex, the time-travel experiments at Tolaria, the creation of Karona and the firing of the Legacy Weapon were gradually bending time until it broke, resulting in a massive and quickly deteriorating Time Crash, centered on Dominaria and threatening the very existence of the Multiverse.
* More of a time explosion than a crash, but in ''TabletopGame/MageTheAwakening'', the collapse of the Celestial Ladder and the fall of Atlantis was such a magical clusterfuck that time itself grew extremely unstable around it. It's why no one's able to accurately place ''when'' Atlantis fell, despite certain mages being master-class postcognitives, why they can't even solidly place whether it actually happened in the past or was a future event cast backwards by the sheer weight of the event, and why they can't tell if anything like Atlantis will ever come into being again.
* A series of three modules for the old TSR [[MarvelComics Marvel Superheroes]] Roleplaying Game, centered on the player characters becoming caught up in a plot of the time-travelling villain Kang the Conqueror. The second module of the series - ''The Weird, Weird West'' - saw the heroes, travelling home via time machine from the events of the first module, crashing in the old west ... with biplanes and pterodactyls flying overhead; cavemen, dinosaurs, and strange aliens from the distant future stalking the land; and the armies of Alexander the Great, Napolean, and Ghengis Khan vying for control of the area. Fortunately, Albert Einstein is on hand to point them to the source of the TimeCrash: a "chronovore," devouring time itself.
* The TabletopGame/{{Pokemon}} Trading Card Game's [[http://bulbapedia.bulbagarden.net/wiki/Broken_Time-Space_%28Platinum_104%29 Broken Time-Space]]. The rest of the set it's from hints that this is due to Cyrus attempting to capture Dialga and Palkia, controllers of time and space, respectively.
* This ''might'' be what's going on with the Hadex Anomaly in ''TabletopGame/{{Warhammer 40000}}'', a SwirlyEnergyThingy that seems to be regurgitating time from other dimensions into our own, and may even be sentient. The problem is getting close enough to study the thing, since any vessel that approaches to a certain distance gets trapped in temporal stasis, leaving the anomaly ringed by ghost ships.
[[/folder]]

[[folder:Video Games]]
* ''VideoGame/ChronoCross'' is the TropeNamer, and the circumstances of its Time Crash forms a significant part of the backstory. In the good future resulting from the events of ''VideoGame/ChronoTrigger'', a time experiment sent the Chronopolis research facility back into antiquity, with the side effect of summoning a city from an alternate timeline as a sort of cosmic counterbalance. Chronopolis was able to defeat and subdue the opposing civilization, then used its extensive records of history to hide its presence from the rest of the world, subtly manipulating events to avoid any [[TemporalParadox paradoxes]] that could threaten its future existence. And then [[spoiler:[[SpannerInTheWorks Schala interfered with the lab's plans]] and [[ForWantOfANail rescued Serge from drowning]]]], which screwed all this up and split the timeline in two. In one timeline where everything went according to plan Chronopolis is still able to exist, but in the other is a region where the BadFuture from ''VideoGame/ChronoTrigger'' is trying to reassert itself, creating a place where time is effectively broken. A collection of futuristic structures have sort of congealed into the [[SceneryGorn Tower of Geddon]], [[TimeStandsStill you can walk on the waves of a frozen ocean]], and ghostlike temporal "echoes" haunt the ruins... [[spoiler:including [[PlayerPunch three familiar faces from]] ''VideoGame/ChronoTrigger''...]]
* It's not apparent from the start, but this is the central premise of ''Shrapnel'', an InteractiveFiction by Creator/AdamCadre. [[spoiler: The protagonist and an ill-fated time traveler are caught in a particularly vicious and inescapable Time Crash caused when the time traveler's time machine was damaged by a piece of shrapnel. Cause and effect cease to exist, and the protagonist experiences several key events in AnachronicOrder and dies multiple violent deaths with no lasting aftereffects before discovering the nightmarish truth.]]
* Speaking of InteractiveFiction, ''All Things Devours'' is all about averting a time crash. The timeline in the universe doesn't take kindly to paradoxes, and will promptly "censor" them with a [[StuffBlowingUp huge explosion]]. What's more, the lab housing the time machine is in the middle of Boston, and the military experimenting on it have no idea what they're doing.
* A recurring theme in the ''Franchise/FinalFantasy'' series:
** In ''VideoGame/FinalFantasyIII'', Xande was so terrified of dying after his master Noah stripped him of his immortality that he planned to freeze time forever.
** In ''VideoGame/FinalFantasyVIII'', Ultimecia's plan is to trigger one of these on purpose so she can rule the resulting time-compressed universe [[AGodAmI as a goddess]]. The heroes also try to trigger a time crash of their own, in an effort to stop her. This succeeds, the past and [[BadFuture the future]] (reversibly) merge and create a DarkWorld that serves as the game's final disc.
** Plays heavily in the plot of ''VideoGame/{{Final Fantasy XIII-2}}'', with a Time Crash causing paradoxes and "debris" from the crashing timelines to fall into other timelines and frames of reference. Resolving these paradoxes is the major quest of the game. [[spoiler:[[TheBadGuyWins Yet despite your efforts, you still ultimately fail and all timelines are erased from existence.]] Trying to fix this in a small wasteland that survived the time crash is the plot of the [[VideoGame/LightningReturnsFinalFantasyXIII next game.]]]]
** This happens halfway through ''VideoGame/FinalFantasyThe4HeroesOfLight'' when the heroes accidentally release a time-breaking flood of darkness all over the world. [[spoiler:However, NiceJobBreakingItHero can be said ''non-sarcastically'' this time, since this ultimately lets them fix the things that made their original timeline a CrapsackWorld.]]
* In ''RatchetAndClank Future: A Crack In Time'', one of these is caused in the backstory by [[spoiler: the Fongoids abusing time travel to the point where the space/time continuum grew thin enough to breach.]] The resulting NegativeSpaceWedgie took out 83 star systems before Orvus and the Zoni sealed it with the Great Clock. History would have repeated itself permanently had [[spoiler:Alister Azimuth]] succeeded in abusing it as a time machine. Which it's not supposed to be used as.
* In ''FateStayNight'' [[spoiler:Archer's true identity is Emiya Shiro, the protagonist. Specificaly he's a version of Shiro from the future who's become disillusioned from all his time as a hero especially since as a Counter Guardian, he is summoned only during the worst instances in Earth's history as a last resort to protect it. Being timeless as a Counter Guardian means he will never be able to stop, so he theorizes that killing himself in the past will create a paradox so powerful that it will stop himself from ever becoming a hero (even if it destroys all of time).]]
* Common in ''Franchise/TheElderScrolls'' universe, especially where dragons or robots are involved. The one that most affects the games is called the Warp in the West, caused by the reactivation of Numidium (a dead-god-heart powered brass golem), which caused ''every single one'' of the possible alternate endings to happen at once. Even ones where the hero [[DroppedABridgeOnHim got a bridgedrop on his head]]. Contradictions ensued.
* ''VideoGame/PokemonMysteryDungeonExplorers of Time/Darkness/Sky'''s pre-credits plot is all about preventing one of these by way of keeping the local god of time from going insane. You even get to see the bad future where the Time Crash happened - a paralyzed planet where the sun never rises and the wind never blows.
* This was the goal of BigBad [[spoiler:Time Master]] from ''FreedomForce'' when he tried to break the Celestial Clock. At the end of the game, [[spoiler:Man-Bot makes a HeroicSacrifice and locks himself inside the clock to allow the rest of the heroes to escape. Wraiths of Chaos begin attacking the clock because of his presence there, locking Man-Bot in an EndlessStruggle to keep the Celestial Clock going and prevent another time crash from happening.]]
* In a particular test chamber in ''VideoGame/{{Portal 2}}'', the automatic PA system gives you a warning:
-->'''Cave Johnson:''' Alright, this next test may involve trace amounts of TimeTravel. So, word of advice: if you meet yourself on the testing track, [[NeverTheSelvesShallMeet don't make eye contact.]] Lab boys tell me that'll wipe out time. Entirely. Forward and backward. So do both of yourselves a favor and just let that [[ScrewYourself handsome devil]] go about his business.
* In the original ''[[CommandAndConquerRedAlert Red Alert]]'', using the [[TeleportersAndTransporters Chronosphere]] [[CriticalFailure too much]] could trigger a mild form of these - a swirling distortion in the map that fried any nearby units or buildings with lightning or tore them apart as it roved around at random. Which naturally led to some players using as many Chrono-based abilities as possible in hopes of triggering one near their opponent's base.
* In ''BlinxTheTimeSweeper'' the [[TimePolice sweeper]] has to fix the [[ClockRoaches damage]] caused by a [[EndOfTheWorldAsWeKnowIt rather large]] one of these.
* In a nutshell, this is basically what happens in ''VideoGame/The3rdBirthday'', the underwhelming third installment of the ''Parasite Eve'' games. [[MindScrew We're still trying to figure out just how it leads to mutant monsters snatching people through dimensional holes.]]
* ''VideoGame//LiveALive'''s Final Chapter takes place during such an event, with the protagonists warped to a world filled with numerous [[UndergroundMonkey enemies from previous chapters]], all of which take place in various time periods.
* The Time Eater in ''VideoGame/SonicGenerations'' deliberately does this as revenge against Sonic, thrusting Sonic into the White Space, a [[PlaceBeyondTime region beyond time]], and shattering time from at least as far back as 1991. When Sonic finally faces the Time Eater, it's at the Center of Time, where the Time Eater has taken chunks of places from various moments in the franchise and sent them floating about.
* In the Forbidden Land in ''VideoGame/ShadowOfTheColossus'', time has stopped dead at high noon, probably as a result of Dormin's imprisonment. As you draw near the end of the ritual, however, the world starts to move again...[[BattleInTheRain in the form of a howling rainstorm in the dark.]]
* Happens in ''VideoGame/{{Ciel nosurge}}'''s eighth chapter: [[spoiler: Due to Nero causing grave interferences in Ra Ciela's timeline just to get Zir to send her back to her world prior to Ion and forcing Clackett to proceed with the sending, the Seven Axis that form the world get distorted, and two years later, reality itself begins breaking down, leading the entire world to an apocalypse that requires Nay to sing a Song Magic to return time to two years prior and undo everything Nero did.]]
[[/folder]]

[[folder:Web Comics]]
* Black Mage's flow chart in [[http://www.nuklearpower.com/2007/12/01/episode-926-schematic-representation/ this]] ''WebComic/EightBitTheater'' comic lists a Time Crash as the only thing that would stop him from trying to kill all life on Earth.
** [[spoiler:Chaos, who is trying to destroy all of existence,]] considers a Time Crash to be an acceptable way to get the job done.
* There was a recent arc in ''IrregularWebcomic'' in which every plot thread created a time paradox at once and the universe was destroyed as a result.
** Followed by an entire arc of black black panels, and an entire arc of everyone hanging out in the afterlife.
* In ''Webcomic/AndShineHeavenNow'' the [[Anime/ReadOrDie I-Jin]] [[TheTimeMachine Wells]] goes back in time to kill one of Integra's ancestors, [[VictorianRomanceEmma Prince Hakim]]. This causing things to rapidly get chaotic until Alucard briefly comes face to face with [[VampireHunterD D]] at which point time and the universe are completely torn apart and everybody from all possible timelines find themselves in the [[Franchise/TheHitchhikersGuideToTheGalaxy Whole Sort Of General Mish Mash]].
* Parodied in the webcomic ''BeaverAndSteve''. The characters go back in time and Steve eats the apple that was supposed to fall on Newton's head; thus, Newton never invents gravity [sic] and in the future everything floats. Then, they travel back in time again and launch an apple at Newton's head but it ends up bludgeoning him to death. Finally, they travel back a third time and end up killing their own past selves. At this point, Beaver remarks, "Well, I'm no expert on temporal physics but my guess is the universe will implode." And then it does.
* In ''Webcomic/{{Homestuck}},'' there is a group of characters that have a computer program which lets them speak to another group of characters in the past or future. It's eventually revealed that the groups will lose contact after an event called "the Scratch", which is shown as a timeline graph that is suddenly cut off and replaced with flickering scrawls. [[spoiler: Ultimately subverted in that the Scratch is not a Time Crash, but actually a ''ResetButton,'' and it results in both groups finally being able to meet each other face-to-face.]]
[[/folder]]

[[folder:Web Original]]
* ''WebVideo/YuGiOhTheAbridgedSeries'': ''Bonds Beyond Time Abridged'' features one of these when [[spoiler: Jaden spoils the end of Yugi's series in front of him]] (but spoiling who won the duel between Jaden and Yugi, which happens the end of ''Anime/YuGiOhGX'', was considered okay because it was obvious). [[spoiler:And it ends up being the way that [[Anime/YuGiOhZexal Yuma]] was created.]]
[[/folder]]

[[folder:Western Animation]]
* A ''WesternAnimation/{{Futurama}}'' WhatIf episode ends with the space-time continuum being shattered by Fry ''not'' going to the future. Because of his ''[[MeanwhileInTheFuture previous]]'' [[StableTimeLoop adventures]] [[GrandfatherParadox in time]], the universe itself is tied in to his existence.
** In the main ''Futurama'' universe: at the end of ''Bender's Big Score'' Bender creates so many time paradox duplicates that he makes a tear in the fabric of reality. This becomes a major plot point in the sequel ''The Beast With A Billion Backs''.
** The most apt ''Futurama'' example has to be "Time Keeps On Slipping", in which the removal of [[{{Unobtanium}} chronotons]] causes time to skip randomly. Professor Farnsworth explains the ramifications thusly:
---> "At this rate, by Tuesday it will be Thursday, by Wednesday it will be August, and by Thursday it will be the end of existence as we know it!"
* Chronos did this in the "Once and Future Thing" episode of ''[[WesternAnimation/JusticeLeague Justice League Unlimited]]''. Time started to crack and fall apart, and killed several people before it was stopped.
* In ''Franchise/{{Transformers}}'', this is known as a time storm, and happens whenever someone makes a massive change to history. Cases include the Quintessons bringing Alpha Trion forward in time to cause the original Transformers Rebellion to fail, Megatron killing Cyclonus, and WesternAnimation/BeastWars [[spoiler: Megatron attempting to destroy Optimus Prime what the latter was in stasis, before the events of TransformersGeneration1]].
** "Dinobot Island" involved the discovery of a time-displaced island of dinosaurs. It turns out that mucking about with the place very much (e.g., the Decepticons harvesting energy from the place) causes random time warps to appear all over the world.
** By ''WesternAnimation/BeastWars'', they'd figured out this trope would happen, and despite it being [[spoiler: G1 Megatron's intention]], WesternAnimation/BeastWars Megs declared it a last resort. After all, even if you ''don't'' break the universe, you're still screwing with [[spoiler: the events that led to your own existence.]]
* In the "It's About Time" episode of ''WesternAnimation/ThePenguinsOfMadagascar'', several future versions of Kowalski show up as a result of his experiments with a TimeMachine. This ends up creating a vortex that threatens to wipe out reality (according to Kowalski, anyway) and ends only after the machine is destroyed.
* In the ''WesternAnimation/KimPossible'' movie "A Sitch In Time," it is feared that the destruction of the [[TimeMachine Time Monkey]] will result in a Time Crash. [[spoiler: It doesn't.]]
* In ''WesternAnimation/{{X-Men}}'', Apocalypse tried to cause one of these so as to rebuild reality as he saw fit once the dust was cleared.
* In, of all shows, ''WesternAnimation/SpongeBobSquarePants'', this happens in 'SB-129' when Squidward breaks a time machine in a panic, sending him to a weird dimension where he seems to be stuck in forever, but he gets back when he finds the time machine after breaking through the floor of the dimension.
* In the ''WesternAnimation/{{Chowder}}'' episode "Won-Ton Bombs" Chowder and Mung go back in time to make sure Mung doesn't embarrass himself in front of his mentor by replacing the bad dish he made with a good one. Despite Mung's warnings, Chowder takes Mung's past self back to the present, resulting in the universe being destroyed.
* The ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' episode "It's About Time" [[PlayedForLaughs plays this trope for laughs]] when Twilight, certain that some horrific disaster is going to occur by next Tuesday thanks to a visit from her future self, spends the week leading up to it trying to find out what the disaster ''is''. As Tuesday draws ever closer with no idea of what catastrophe is coming or how to prevent it, a frantic and sleep-deprived Twilight decides that the only way to avert the disaster is to find a spell to stop time itself so that Tuesday never comes. [[spoiler: Fortunately for the universe's sake, she doesn't find any such spell, and the impending disaster was just a misunderstanding resulting in a StableTimeLoop.]]
[[/folder]]

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