"My machine allows your mind to inhabit a body in the past."A form of Time Travel where you don't physically go back in time. Instead, your body goes back to where it was in the state that it was, but you keep your memories from the future. The advantage is that, if done correctly, it neatly sidesteps many of the logical conundrums and paradoxes associated with time travel. The disadvantage is that your range of times to travel to is limited to the time your body can function for these purposes, a few decades at most. The other disadvantage is that it doesn't make physical sense. A common variation is that the time traveler isn't going back to their own body, but to someone else's, maybe sharing their consciousness and having mental conversations or maybe a full Grand Theft Me. This gets around the disadvantage of the destination being with a few decades of the starting point, while still avoiding some of the logical problems with paradox. Depending on what point the writer is trying to make, it sometimes turns out that you can't actually change anything in the past, and are forced to live through all your mistakes again. "Groundhog Day" Loop stories often (but not always) use this mechanism. Also see Peggy Sue fanfic. Unstuck in Time is usually a version of this. Impossible without a Ripple Effect-Proof Memory. Contrast with Intangible Time Travel.
— H.G. Wells, Warehouse 13
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Anime and Manga
- Rika and Hanyuu in Higurashi: When They Cry, though they're not always able to keep all of their memories.
- Most of the cast, actually, they just drop more memories.
- Tomoya from CLANNAD seems to undergo this.
- Combined with standard Time Travel in Katekyō Hitman Reborn!. After the Vongola return to the past, the Arcobaleno send the memories of the future versions of the non-time travelling characters to their present versions.
- In Konpeki no Kantai, when Isoroku Yamamoto's plane is shot down in 1943, he wakes up in 1905 on the cruiser Nisshin just after the Battle of Tsushima. He uses his knowledge to prevent Japan making the mistakes it made.
- The plot of Full Metal Panic! centres around "The Whispered", people with Psychic Powers that allow them to receive information from the distant future. This is how they can have various bits of supertech, most notably Humongous Mecha, being built in an otherwise Present Day setting.
- Puella Magi Madoka Magica: This is how Homura's "Groundhog Day" Loop ability seems to work.
- The Time Leap machine in Steins;Gate allows for this.
- Rintaro Okabe does this regularly thanks to "Reading Steiner"
- In Steins;Gate 0, Okabe time leaps to the future, instead to the past, using the Amadeus program.
- Ore ga Doutei wo Sutetara Shinu Ken ni Tsuite employs this trope as a major feature.
- Part of the premise of Again!!
- In The World God Only Knows the Goddesses send Keima and Elsie to the past. Keima returns to his kid body but he and Elsie keep all the memories of the present. In an interesting twist, his younger self actually inhabits his older body; the minds were literally switched. The goddesses decide to try and use this opportunity to imprint young Keima with affections for their hosts.
- Bleach: Hitsugaya becomes trapped in a "Groundhog Day" Loop, forced to repeat the same fight over and over again. Every time he kills his enemy, the loop resets to his original starting point with his memories of previous loops intact. After too many loops, he becomes paralysed. While the "time travel" is actually just a drug manipulating his memory and spatial awareness, the paralysis it causes is very real. Due to being an enslaved zombie, fighting on behalf of Giselle, Hitsugaya ends up fighting Mayuri, who's known for infecting his enemies (and allies) with weird concoctions For Science!
- Basically how Shunsuke's power works in Charlotte. He uses it repeatedly to figure out ways to protect other ability-users, though it comes with the additional drawback of degrading his eyesight.
- Zeff does this to himself in the first chapter of The Mage Will Master Magic Efficiently in His Second Life.
- ERASED has Satoru able to jump back in time to prevent some kind of tragedy, although he doesn't really have any control over when it happens.
- In Your Name, the big Reveal is that Taki and Mitsuha were actually three years apart, which is part of the reason their attempts to meet face-to-face (or at least to speak to each other via cellphones) always failed. The other part is that Mitsuha died when a passing comet destroyed her town.
- In the original Days of Future Past storyline in X-Men, Kitty Pryde travels back in time by switching minds with her younger self.
- Alex Robinson's graphic novella Too Cool To Be Forgotten has the main character Andy Wicks relive a portion of his high school years during hypnotherapy.
- Professor Carter Nichols invented "time-travel hypnosis" in Golden Age and Silver Age Batman stories, although the stories were always vague as to whether the subject actually travelled in time or not. He inevitably returned in Grant Morrison's Batman.
- Dr. Manhattan of Watchmen perceives all moments of his life simultaneously, though his ability to comprehend the full story they form seems to be limited. He also claims that he can't change the events he observes: "I'm just a puppet who can see the strings."
- Done into the future by Cyclops and Jean Grey during their honeymoon, thanks to their time-displaced alternate universe daughter arranging to have cloned bodies made for them. Their own bodies spend a few minutes lying comatose on a beach, while they spend ten or more years in the distant future, raising Cyclops' time-displaced son by Jean's clone to become a warrior capable of defeating Apocalypse.
- Star Wars fics involving time travel are surprisingly common, and a high percentage of them involve various characters being sent back to Set Right What Once Went Wrong after dying.
- Doing It Right This Time: Shinji, Asuka and Rei's minds were sent back in time to three months before the beginning of the Angel War (and later they find out they are not the only returnees). Asuka jokingly suggests they pretend everything was just a prophetic dream or something, and theorizes Kaworu has something to do with their return.
- Once More with Feeling: When Shinji decides in Third Impact to 'go back', Lilith takes a different idea of what 'go back' means. She inserts a steel rod into his back to make up for his complete lack of a spine, then sends him back into the past. Shinji then wakes up in his fourteen-year-old body, staring at the payphone he was trying to use right when Sachiel attacked at the beginning of the series.
- The Second Try: After spending over six years surviving in the post-Third Impact world, Shinji and Asuka wake up one morning to find that mankind has returned, they are in their younger bodies and living in Misato's apartment again, and only they have any memories of what has happened, and what is happening again. Upon waking up, Shinji right away notices his body feels "different", and among other things, his face skin is soft again.
He didn't finish the sentence. The last remains of sleep vanished instantly as he saw it.
Her hair. Her long, flowing hair.
And it wasn't just that. Her face, what he could see of it in the dark, seemed more round and soft, her cheeks not as defined; her body as well was shorter and slimmer, the muscles on her bare arms that had been toned from strenuous work with the garden and the machines seemingly faded...
She was young.
She didn't look much older than on the day they had met so long ago.
His mind was racing, trying to comprehend such an impossibility, but none of the thousands of thoughts could give him an answer he liked. He literally jumped out of the bed, almost throwing Asuka aside, as he unbelievingly took in the surroundings. A small and tidy room. He could make out the shape of a cello case in one corner, the familiar silhouette of a S-DAT player on the desk near the bed.
This wasn't their bedroom at home, this was his old room in Misato's apartment – but without any dirt and debris, without any sign of destruction at all.
But it wasn't just everything around him. His body, too, felt different as though changes that were supposed to come slow enough to adapt to had been made instantly. He may never have had as distinctive and hard features as his father, but reaching up to his face, he also could only feel smooth skin, not even a hint of stubble.
- A remarkably high percentage of AU fics for Harry Potter are like this. Usually it's Harry that does the rewind, sometimes the 'Golden Trio', occasionally Ginny to mix things up, and at least once it was the Trio, Ginny, Neville, Luna, Sirius, and Lupin, and maybe a few more in addition.
- After the seventh book there were fanfics with Snape going back to the "Snape's Worst Memory" scene right after his death. Usually with the purpose of him getting the girl.
- The Empath: The Luckiest Smurf story "Days Of Future Smurfed" has Empath flashing between his present-time self and his future-time self at various points in time after he received visions of the future from his great-grandson Traveler.
- Hogyoku ex Machina contains this form of time travel for Aizen and Ichigo. However, due to the nature of how they go back, Ichigo keeps all his power-ups from the final battle, while Aizen does not. This has advantages and disadvantages for both of them.
- In the Mega Man Zero fanfic 'Mistress Ciel by Archaon, Ciel uses this to go back in time to make things better.
- This is the underlying concept of BairnSidhe's Bodies in Time.
- The Life Is Strange fanfic Letters From Tomorrow does a twist. Max already had this power in the main game (though she didn't use it much), and the fic takes the perspective of present!Max being occasionally taken over by future!Max, who will take actions and leave notes intended to lead to a better future. The exact future future!Max is from is unclear, but she is utterly ruthless and amoral—her first act was to brutally murder someone in public, use that as a distraction to steal something, then rewind time so that no one remembered the murder but the stolen object was still in her possession. She also set up a fatal accident for Victoria so that her present self could save her and earn her trust.
- Groundhog Day For Phil, Groundhog Day begins each morning at 6:00 A.M., when he wakes up in his room in a Victorian bed and breakfast. His clock radio is always playing the same song and it is always February 2nd, His memories of the previous day are intact, but he's trapped in a seemingly endless time loop, repeating the same day in the same small town.
- The Butterfly Effect Evan finds that when he reads from his adolescent journals, he travels back in time, and he is able to "redo" parts of his past, thereby causing the blackouts he experienced as a child. There are consequences to his choices, however as he continues to do this he realizes that even though his intentions are good his actions have unforeseen consequences.
- Click, traveling into the future instead of the past.
- The hero in Somewhere in Time is able to cross time through the means of self hypnosis.
- Galaxy Quest featured the Omega 13, a machine that sets the universe back 13 seconds ("just enough time to correct one mistake") while allowing a particular person to keep his or her memories.
- Retroactive has a machine that reverses time for a set period up to an hour while allowing one or more people to keep their memories. It also preserves the video on a VHS tape at one point.
- Peggy Sue Got Married
- The ending of Jumanji, After finishing the game where Everything Is Trying to Kill You the two protagonists return to when their bodies when they first started it, 26 years earlier.
- Jumanji: Welcome to the Jungle reverses the perspective. The main story focuses on four teenagers who get stuck in the game in 2016, where they meet Alex who's been stuck in the game since 1996. Yet when they escape, Alex has become a grown man and the events caused by his being sucked into the game in the first place never appeared to have happened, despite the main characters clearly remembering the old timeline.
- Also done at the end of its Spiritual Successor Zathura, though less notable because in the latter case the game was finished on the same day it began.
- 13 Going on 30
- In His Fathers Shoes features a pair of magical shoes from a gypsy, which allow Clay Crosby to go back in time — and briefly experience life as his father, Frank, when he was Clay's age.
- The girl in the film Split Infinity doesn't go back to a younger or older version of herself, but to a different person, her late great aunt. A.J. Knowlton's time travel method? She fell out of a hayloft to go back to 1929, and rode a homemade amusement park to get back to 1992. One that a bunch of kids had ridden earlier. One may assume that Sam prefers the technological route....
- La Jetée employs a form of this, with the time travellers going to periods on their memories (but they don't go to their past bodies).
- In Hot Tub Time Machine, everyone takes the appearance of their younger selves with the exception of Jacob, who was conceived on the day the group travel to.
- In the movie Next, Nicholas Cage's character has a power somewhat like this. He has two minute long precognition, but what he sees are merely possible futures. It's difficult to explain but a few examples should do a trick. He 'tried out' different approaches when hitting on a girl. He saw that casually beating up the girl's stalker ex boyfriend (who was present at the time) would prompt the girl to just walk away, but letting the guy punch him in the face would win the girl's sympathy, so he let this happen. He can also dodge bullets or search a huge area in almost no time using his ability.
- In the movie Source Code, Jake Gyllenhaal's character performs a virtual version of this, taking over the body of an anonymous, doomed man in a simulation of the minutes before his death in an attempt to find out who planted the bomb that doomed him.
- Santo en El Tesoro de Drácula features an odd variant. The movie's heroine, Luisa, travels back in time to 19th century Mexico, where she inhabits the body of a young woman (identical, from the audience's perspective). But the details are a bit muddled - for example, her body seems to disappear from "the present."
- In Trancers both the bad guy and the cop chasing him go back in time, but must inhabit the bodies of distant ancestors. This movie also has people killed in the past with their "present day" descendants vanishing - but are still remembered.
- Discussed in The Time Machine (2002).
Über-Morlock: We all have our time machines, don't we. Those that take us back are memories... And those that carry us forward, are dreams.
- In About Time Tim can send his mind back into his past self. It's only one way though.
- X-Men: Days of Future Past: 2023 Wolverine's mind gets beamed back in time into his younger self's body in 1973. Also goes in reverse when Past Charles has a conversation with his future self by way of Logan's mind.
- The timeloop in Edge of Tomorrow work like a "Groundhog Day" Loop, where the primary object traveling back in time is information in the hero's mind, while everybody else' memory is reset.
- In the 1933 film Berkeley Square starring Leslie Howard, a man of the 1930s switches minds with his identical ancestor in the 1780s. It was remade in 1951 as The House in the Square, starring Tyrone Power.
- By studying the alien language in Arrival, Louise acquires the ability to incarnate into her future self. Knowledge gained during those experiences later help her solve the crisis in the present.
- Caspian and the Keepers in the second entry of Astral Dawn accomplish this by travelling through time as ethereal beings. They also take temporary residence in physical bodies along the way.
- Slaughterhouse-Five, by Kurt Vonnegut
- Timequake, also by Vonnegut, features the entire world — and, it's implied, the entire universe — being mentally sent back 10 years and completely unable to change anything until that period is over.
- Replay, by Ken Grimwood.
- The Time of Achamoth by M.K. Joseph.
- The Power of Un: A boy meets a mysterious stranger who hands him a giant calculator-like thing and says it's for going back in time and making sure that — wait, dang it, the guy disappeared before he quite finished the instructions. And the boy isn't impressed by the odd machine. But his flippant attitude turns serious when his little sister ends up getting hit by a truck, and he figures out how to use the device to replay the day so he can save her. Of course, it's not that easy...
- H.P. Lovecraft's The Shadow Out of Time twists this trope by combining it with Grand Theft Me: the protagonist has his body stolen by a researcher from a Starfish Alien civilization that flourished on Earth millennia in the past, and spends several years living in the researcher's body while the researcher uses his to learn about the twentieth century.
- Time and Again by Jack Finney, and its sequel Time After Time. Born in the Wrong Century, the protagonist goes back in time mentally by imagining himself to be in The Gay '90s and surrounding himself with items from that period until he becomes temporally dislocated. Partly averted in that he does not travel back into his own memories, but that of an alternate self.
- The plot of R.L. Stine's Goosebumps novel The Cuckoo Clock of Doom is based around a cuckoo clock which causes the protagonist to jump back to earlier points in his life starting with the previous day. The problem is that it keeps going further back in time with no sign of stopping, probably erasing him from existence eventually.
- in Eric Nylund's A Game of Universe, Germain possesses a powerful bit of magic that can rewind time, but only for seven seconds (and it can only be used once).
- Terry Pratchett's Thief of Time has an entire species who use this ability regularly: "The Yeti is able to save its time at a certain point, and then venture forth knowing that if it dies, it can just resume its life from the point it saved at with the knowledge it acquired before death. It is effectively a highly evolved, albeit slightly painful form of foretelling." This is, in all likelihood, a direct reference to saving in video games.
- Well, Pterry is One of Us, so yeah.
- This is how Charles Wallace time travels in A Swiftly Tilting Planet: he is able to enter the minds of people in the past and, though he has very little control over what they do, he still influences them in tiny ways. The fact that he has a time-traveling unicorn helps a lot.
- "Unsound Variations", a short story by George R.R. Martin has an antagonist who utilises this repeatedly and obsessively to wreck/steal the successes of his former college buddies.
- Used by Tolkien in The Notion Club Papers, combined with mental space travel (astral projection). The effects of time passing at a much more rapid rate means that the traveller in question looks down on what he initially thinks to be some sort of fetid anthill, but turns out to be his home city of Oxford through the ages...
- The book A Gift of Magic by Lois Duncan has a main character who has (among other powers) the ability to look into the past. It comes in handy, because her grandmother had the ability to look into the future, allowing the two of them to "meet" on the day the grandmother died.
- H. Beam Piper's first published story (1947), "Time and Time Again" (no relation to Jack Finney's book): The main character, dying in World War III in 1975, awoke in his thirteen-year-old body in 1945. Being a trained chemist with the scientific knowledge of 1975, he'd have an advantage going into the chemical industry; he also had quite a good memory for horse-race winners. He planned to build a fortune and use it to prevent the war he'd died in by, among other things, getting his father elected president in 1960. Two of Piper's later stories, set in the '60s, imply that he was successful in that part, at least.
"All right, son, I'll do just what you tell me, and when you grow up, I'll be president...."
- In the Haruhi Suzumiya novels, this is true for Yuki Nagato and only for Yuki Nagato. In the "Groundhog Day" Loop short story Endless Eight, everyone's memories get reset, although they start experiencing déjà vu. Apparently, Yuki is not affected by this because time is not an obstacle for her.
- For King And Country, by Robert Asprin and Linda Evans, features what seems to be a Terminator Twosome of an IRA agent traveling back to Arthurian times to change history in Ireland's favor or simply punish England, and a British soldier trying to stop it. They go all the way back to around 500 AD or so and share the bodies of people close to King Arthur. It seems like a Stable Time Loop and/or Tricked Out Time, but the ending is a little ambiguous. Meanwhile, in the Future..., their bodies remain in a comatose state while they are in the past.
- In the Russian novel Cube with Blurred Edges by Vladimir Ilyin, this is the only possible method of Time Travel. Originally used exclusively by the special forces-like Harders with brain implants called Iscapes, which throw their consciousness back a few seconds at the moment of death (how death is determined is not clear). To an outsider, it looks like a Harder is impossible to kill, as they look like they can dodge bullets and have a sixth sense. In reality, the Harders are just using the foreknowledge to avoid the same deadly outcome. Later on, a rival organization obtains an Iscape and builds a similar-functioning device called a Regr that works by thinking of the time you want to go back to. This is one-way, however, as the timeline is changed by this action. They then start selling the devices to the general public and eliminating anyone who tries to investigate them (easy when you can always go back to fix a mistake). The knowledge of the original timeline quickly fades if any changes are made.
- The protagonist (a Harder) starts suspecting the existence of these bootleg devices when a space liner explodes. While it looks like a typical malfunction (and it is), he does find it strange that a full third of the passengers have cancelled their tickets several days before boarding. It turns out they all have these devices.
- He also finds out that a Harder was on the same flight but managed to survive. The Harder reveals that he spent countless iterations trying to stop the explosion. Eventually, though, his traumatized mind forced him to board an Escape Pod moments before the explosion. He ends up having his Iscape removed and committing suicide.
- A member of the rival organization is a criminal psychiatrist who has installed a static version of the Regr device in order to try to rehabilitate criminals in the most direct way possible. After convincing them not to do it, he sends them back to a few minutes before the crime that got them to him in the first place. If successful, he only has a vague notion that he helped someone, no longer remembering the details. If not, he remembers that he tried before. He normally gives a criminal three tries before giving up and handing him back to the justice system.
- The protagonist (a Harder) starts suspecting the existence of these bootleg devices when a space liner explodes. While it looks like a typical malfunction (and it is), he does find it strange that a full third of the passengers have cancelled their tickets several days before boarding. It turns out they all have these devices.
- In Sergey Lukyanenko's A Lord from Planet Earth, the main character finds himself on an alien planet in the middle of an invasion. He is given a pair of Seeder artifacts with an unknown function. During the first confrontation with the Big Bad, one of his new friends is brutally killed, and the Big Bad is an inch away from slicing the protagonist open. In desperation, he breaks one of the pencil-shaped crystals and time freezes, while he hears a voice telling him of a "temporal event" of some sort. He then finds himself several hours prior with full knowledge of things to come. The only difference is he only has one artifact left. He also finds that it's pretty difficult to try to change things, as the universe keeps trying to maintain continuity. He does manage to save his friend (twice, by using the other crystal) and alter the final fight with the villain to strike him while the Big Bad is moving in for the kill. Also, physical time travel is possible as well.
- We Are Tam by Patricia Bernard features a form of mental time travel that allows a person to visit other times if somebody in that time period is their genetic double.
- Sherman Alexie's novel Flight has the protagonist inhabiting various people's bodies, ranging in time from the Indian wars to present day.
- In Eric Norden's novella The Primal Solution, an elderly Jewish scientist - a Holocaust survivor who had lost his entire family - discovers a means of mental time travel, which enables him to project his mind into the past and take over the body of the young Adolf Hitler in the Vienna of the early 1910s. Resolved to force Hitler into suicide, the vengeful professor can't resist humiliating him first and forcing him to drink sewer water in front of surprised passersby, before making him jump into the Danube - but in the moment before drowning, Hitler regains control of his body and returns home shaken. The Professor is trapped inside Hitler's mind, but is able to "hear" him think "The Jews? Why did the Jews do this to me? I have never harmed them!". Able to access Hitler's memories, the trapped Professor suddenly realizes that until this moment the young Hitler had not at all been an anti-Semite and was in fact on good terms with some Jews. Only because something inexplicable had entered Hitler's mind - something which totally hated him and was implacably bent on his destruction, and which identified itself as being Jewish and acting on behalf of all Jews - did he become the genocidal Hitler known to history. Never daring to tell anybody of this presence in his mind, for fear of being considered insane, Hitler would gradually develop the idea that only by killing all Jews would he be free of that haunting presence. In short, the very act intended to avert the Holocaust ends up being its direct cause.
- Used by Allan Quatermain to visit past lives in The Ancient Allan and Allan and the Ice Gods.
- In Andre Norton's Forerunner Foray, Ziantha is sent back by the artifact into the body of Vintra, entombed with the corpse of Turan — which is revived by another mind sent back. After they hunt for the artifact's other element, Ziatha is sent back again into the body of D'Eyree of the Eyes. She apports the other eye back to that time, and they return to the tomb, which allows her to apport them both back.
- The premise of Future History is the protagonist suddenly receiving memories from her own future and trying to figure out why.
- All You Need Is Kill. The protagonist is trapped in a "Groundhog Day" Loop where he gets killed in battle, then wakes up 30 hours before his death. He's later told that he's not actually going back in time, but when he dies a tachyon pulse of his memories to that moment are sent back in time, and he perceives the events that led to his death as an extremely detailed dream. The alien invaders he accidentally got the power from have been using it to adapt to all human strategies; he uses it to become a One-Man Army by learning from experience over and over in the course of a day.
- The Star Rover by Jack London has the hero placed in a straight jacket as a punishment in San Quentin Prison. He wanders through space and time while confined.
Live Action TV
- Quantum Leap is a variation, where the protagonist time-travels into other people's lives. In the episode "The Leap Home, Part 1," though, Sam did leap into his sixteen-year-old self. He was distressed to find out that he wasn't allowed to help his own family with his knowledge of their futures, and that when he tried to do so, they just thought he was crazy. He could also only travel within the span of his own lifetime, apart from a few exceptions.
- Tru Calling
- Do Over, a short-lived 2002 sitcom about a man reliving his school years.
- That Was Then, a short-lived 2002 drama about a man reliving his school years.
- Odyssey 5, a short-lived 2002 (notice a pattern?) sci-fi series about a group of astronauts who witness the Earth exploding while on a mission, and are sent back 5 years by a Sufficiently Advanced Alien in order to prevent it.
- The Eureka season 1 finale, and the first half of the "Groundhog Day" Loop episode "I Do Again."
- Later on, they introduce physical time travel.
- Star Trek: The Next Generation:
- In the episode "Tapestry", Picard dies and to his horror is greeted by Q in the afterlife. After admitting that he regrets a lot of his brash actions as a young man, Q sends him back to the incident that gave Picard his artificial heart so he can change things.
- In the series finale "All Good Things", Picard finds himself continuously shifting between three seperate timelines, one in the "present", one several years ago when the Enterprise was just launched, and one 25 years in the future when Picard is mostly retired.
- Lost has a few characters that become Unstuck in Time. The most notable example is Desmond, whose consciousness keeps jumping back and forth between 1996 and 2004.
Charlotte: I'm not allowed to have chocolate before dinner.
- This one is also unique, because unlike normal (when we follow someone who jumps back into their life) we're following Desmond's 1996 self as he jumps into his 2004 self and back.
- And then all of the survivors on the island become unstuck. Good for them. However, this version was physical time travel, not mental. Except for Charlotte before she dies. Her last words to Daniel are her first words to him when she met him as a little girl. Yeah, I know.
- Canadian comedy Being Erica is about a woman offered the chance by a supposed therapist to go back and change a long list of bad decisions that have led to her life being a dead end.
- Similarly, Medium's protagonist will occasionally have this.
- Though Stargate SG-1 usually goes the physical route, they had the obligatory "Groundhog Day" Loop episode with O'Neill and Teal'c which was entirely mental. However, after the end of the loop, they discovered that the rest of the universe was operating normally, while Earth and a few other worlds were stuck in the loop. From the outside universe's perspective (and that of O'Neill and Teal'c), Earth was stuck in that loop for several months, so time travel was only local.
- Star Trek: Voyager has an episode where Kes starts at the end of her life with no memories and progressively hops backwards through her life. The only consequence of this is to help the then present day Voyager avoid a deadly enemy. Other than that, its a giant Snap Back and Reset Button.
- Warehouse 13:
- H. G. Wells's Time Machine is a pair of armchairs with headbands and some electrical contraption. It works by sending the (up to 2) users' consciousness back in time into specific bodies for no more than 22 hours 19 minutes (she has no idea why that is the limit), during which time the owners of the bodies in the past black out. Helena mentions that the machine makes use of the gestalt phenomenon. Also, since changing the past is virtually impossible, time travel poses no risk to the body owners (unless they were meant to die during this time). The time travelers, however, run the risk of being lost in the ether, never finding their way back. The machine was only used three times. In fact, all uses happened due to Stable Time Loops. HG knew she was somehow there the night of her daughter's death by the killer's description of another person's fighting style. She knew kempo, but her maid (whose body she inhabited) did not. Pete and Myka travel back because of a recording they made to themselves in the past, and solve a case. Rebecca needed to go back to initiate her relationship with Jack. Unfortunately, she does not make it back. But then again, she wanted to die..
- Ferdinand Magellan's Astrolabe also has this effect for the user, although it can only go back 24 hours and can have some nasty side effects. One of the more famous users of the artifact was Maximilien Robespierre, which resulted in the Reign of Terror costing the lives of tens of thousands of people. Additionally, the artifact actually travels back in time with the user and disappears from its hiding place. According to Brother Adrian, using the artifact will release an unspeakable evil. In a twist, the evil turns out to be an evil split personality of the person using the Astrolabe. In Artie's case, he perceived his evil side as Brother Adrian attempting to force Artie to use the Astrolabe to undo the time change. The real Brother Adrian was trapped in an Artifact painting in Vatican. Eventually, Artie completely snaps, kills Leena, and tries to destroy the world to force the Warehouse agents to let him use the Astrolabe. Claudia is able to save him, but he never gets over Leena's death.
- Curtis' power in Misfits is to mentally travel back to before something he feels guilty about. While this is problematic when he's trying to break up with his girlfriend and keeps feeling guilty about it, it's certainly one of the more useful powers.
- Kamen Rider Double gives an interesting twist on this with the Yesterday Dopant, whose power causes people to do whatever they were doing exactly 24 hours ago because they think they're doing it right now. This is demonstrated first when it causes a man to leap to his death by making him think he's diving into his swimming pool; later on, it sets up a fight with the hero so that his actions can be used to attack someone the Dopant wants to murder.
- An episode of Charmed has Paige going back into her younger self to re-live the day her adoptive parents died.
- An earlier episode had Phoebe switching places with her past self, an evil witch in the 1920s.
- The Twilight Zone (1959) episode "Static" featured a bitter, regretful old man who was able to pick up nostalgia-inducing radio signals from twenty years in the past. In the final scene, he discovers that he is a young man in that past again, with a chance to try again.
- MacGyver (1985): This might be what happens to Mac in "Good Knight, MacGyver". Or it might be All Just a Dream.
- The Flash (2014) has an episode where The Flash accidentally does this, though he only goes back about a day. It's also debatable if it's mental, since Barry clearly sees another version of him running by, except his past self fades away. Possibly a case of Never the Selves Shall Meet. In fact, physical time travel is not only possible but serves to create the show's 'verse by having the Reverse-Flash travel back from the future and kill Barry's mother, resulting in a new timeline.
- This is premise behind Best Friends Whenever, following a lab accident best friends Shelby and Cyd, gain the power to travel into their past or future bodies, by touching each other and thinking of a date/event.
- 12 Monkeys primarily uses physical time travel, but Season 2 reveals that drinking tea made from the leaves of the Red Forest (the Eldritch Location created by paradox time storms) allows the mind of the drinker to leave the physical constrains of time. In the season finale, Cole, stranded in 1959 after failing to prevent the murder of a Primary and subsequent paradox in 1957, uses this method to go back into his younger self and prevent the murder and paradox, restoring the timeline.
- In Travelers the Benevolent Conspiracy sends it agents back in time this way. The process tortuously kills the original person. Usually they only take over the bodies of people who were supposed to die in order to minimize unintentional changes (Travelers do not get the memories of their host so replacing a person part way through their life would mean them not doing things they were supposed to). Travelers convicted of treason are also executed by having their minds overwritten with a new Traveler.
- Most time-travel abilities in Dungeons & Dragons work like this, although there are exceptions such as an epic spell that grabs a version of you from about six seconds into the future.
- A LARP game called Nepenthe featured time-travellers with the "jump into someone else's body" variant. They came from a post-apocalyptic future destroyed by the mysterious Nepenthe, and jumped back to early in its creation, ending up in the bodies of a bunch of D&D players at the gaming convention at which the LARP was sent. Nepenthe turned out to be a highly-addictive Virtual Reality game.
- Emily from Our Town is transported into her body on one of her birthdays in an attempt to experience life again after she dies in childbirth.
- This is your primary power as a eponymous achron in Achron. Do note that all other players can do this too, so be prepared for some very interesting multiplayer battles...
- The second Prince of Persia trilogy allows you to rewind up to ten seconds. Near the end of The Sands of Time, the Prince uses it to kiss a girl without her knowing it.
- Warrior Within also has physical time travel.
- The film has this as well, with CGI effects showing the prince watching the events rewind from a third-person perspective. At the end, he rewinds time to just after the invasion of Alamut.
- Raidou Kuzunoha vs. The Soulless Army has the Time Tourists visiting the Akarana Corridor, who prefer using this method instead of risking getting Unstuck in Time.
- In The Legend of Zelda: Ocarina of Time, Link can use the Master Sword to travel back and forth between his child and adult selves. Unusually for this trope, despite not actually physically travelling anywhere, he still managed to create two alternate branched-off timelines in the process.
- In Final Fantasy VIII, this is a supernatural ability of Ellone. Those who travel back in time this way cannot affect the past, but they can watch events occur from a first-person perspective, and grant the people of the past all their modern-day powers. Ultimecia is the exception to this rule, being so powerful that she can fully possess the bodies of those who she inhabits in the past. This ability is the crux of her plot to cast Time Compression.
- When the party goes to Shion's ruined home planet Miltia in the third episode of Xenosaga, it is revealed that the recurrence of the disaster is entirely mental and similar to an encephalon dive.
- Many modern racing games have a Rewind feature that similar to the Dagger of Time in the Prince of Persia series, allows you to rewind time for a few seconds to correct a crash or bad turn and thus be less punishing on the player.
- In Second Sight, there are moments where the psychic player character, John Vattic has flashbacks that allow him to change events in the past which in turn alter the present (for example, saving the life of someone who had died). Subverted when it is revealed that you're not traveling to the past at all. The "past" is actually the present and the "present" is actually Vattic seeing into the future.
- Braid's rewind feature.
- Radiant Historia involves you jumping through time to points where you already existed. While your body technically still ages as you go through time, you replace the "you" that would've been in that moment of time, so that paradoxes are avoided.
- One ending of Shadow Hearts: Covenant sends Yuri back to the beginning of the first game looking exactly like he did in the original's opening cinematic, but apparently with all his memories of the future, while the other heroes are shuffled through time the regular way.
- The astral projection ability in Sam & Max: The Devil's Playhouse could be explained this way.
- The obscure 3DO First-Person Shooter Immercenary features an odd variant: the player's consciousness is projected into the future and directly into a virtual reality game in which much of humanity will eventually become trapped, in the hopes of shutting it down from within.
- no-one has to die.'s TEMPEST machine. The way it works is actually quite different from other examples: Forward time travel works like normal, but travelling backwards destroys your body and takes your consciousness to any number of alternate universes.
- Mabinogi invokes Mental Time Travel for many of the "RP" quests-the Player Character(s) experience the memories of other characters after placing items personal to those characters on dungeon altars. An early example is a party of three characters experiencing the memories of the Three Missing Warriors, which puts the players on the path to saving a Goddess.
- Implied in the Roguelike The Consuming Shadow, where the main character retrains the experience he has gotten over the playthroughs, and sometimes mentions the he dimly remembers that he has seen or dreamt about similar things before. This being an lovecraftian story, he of course thinks it is a sign that he is going insane.
- This is how Undertale justifies its save points; somehow or another, it's caused by determination. Most major characters have a little bit of Ripple Effect-Proof Memory, except Sans, who gets by just being Crazy-Prepared, and Flowey, who actually has full ripple-proof memory... because until you fell into the ruins, he was the one with this power. And at the end of a Neutral run, he turns the situation back around on you.
- Randal's Monday: Done by Sally at the end of the game.
- In the Visual Novel Yo-Jin-Bo, the protagonist ended up traveling through time via a magical pendant and put her in a body of a princess.
- Zero Escape:
- In Nine Hours, Nine Persons, Nine Doors, June/Akane Kurashiki has this ability, and can in fact explore multiple possibilities. All the game's Multiple Endings are essentially just her Save Scumming in the future, trying to find the sequence of events that leads to her own life being saved in the past/present.
- The sequel, Virtue's Last Reward takes the concept even further. The entire Nonary game exists to train Sigma and Phi in mental time-travel so they can go back in time and stop an outbreak of a virus.
- Rounding up the trilogy is Zero Time Dilemma, which takes place a year after 999 and before VLR, with the cast of VLR trying to win the Decision Game and prevent Radical-6 being released. Unfortunately, Zero is well aware of their powers...
- The Phone Microwave (name subject to change) in Steins;Gate is eventually upgraded in such a way that it allows to send a person's memories back in time, effectively letting the person in question relive a set period of time while retaining the memories from the future. The mechanics of this are tied to Okabe's cell phone, so in theory, anyone who picks it can receive the memories, even if they didn't originally belong to the receiver. This is frequently used by Okabe, and once by a future version of Nae.
- Narbonic has "Dave Davenport Is Unstuck on Time" (a Shout-Out to Slaughterhouse-Five), with Dave bouncing between childhood, middle age, and his teenage years. At first, it seems like he wasn't able to change anything; he angsts, and decides to have a cigarette. Then Mell asks, "Since when do you smoke?"
- Bob and George, "All Good Things" (a Shout-Out to the Star Trek episode).
- The "rewind device" in City of Reality uses this method to allow characters, in the story, to retry their actions until they get them right.
- Used by Mizkit in Breakpoint City in an attempt to tarnish Ben's reputation in one arc.
- Othar Tryggvassen's twitter adventures had this at one point. Quite a Tear Jerker, too.
- In The Dreamer, Beatrice travels back in time to the The American Revolution when she's asleep.
- The final strip of Arthur, King of Time and Space reveals that the world hasn't been transforming around Arthur all this time, his consciousness has been shifting to other incarnations.
- In Spes Phthisica, this is all that is possible. Information (in the form of dreams, images, messages...) can travel back in time, but not physical objects.
- Code Lyoko's Returns to the Past.
- Although Jérémie retaining a picture taken before one of them caused massive speculation among the fanbase.
- Also the fact that it can't retcon out someone's death.
- South Park:
Blavius the Talking Sea Otter: Don't worry, my son. When you return to your time you will merge with your other self. It's all very Zen.
- The show parodies this with Eric trying to induce a temporal coma so he can travel back into the past and learn about the Founding Fathers. By dropping weights onto his head. Notably, this averts the limit to one's own life; apparently, a Cartman-body just magically generated in the past when Cartman's mind needed it. (Or it was All Just a Dream, the episode was kind of ambiguous.)
- This is also how the "Go God Go!" two-parter ended, with Cartman (having been stuck in the far future) being transferred back in time to "fuse with his past self."
- The Batman features Francis Grey, who discovers he can "turn back the clock" 20 seconds, allowing him to relive his past and relearn his mistakes. He discovered this power through his obsession with time
- Inverted in Rugrats, during the Poorly Disguised Pilot for the spinoff, All Grown Up!. Granted, there is no logical reason why what they did should have worked, suggesting that it may have been All Just a Dream, but it was way too consistent with the actual plot to discount. At the end, the babies emerge from the closet they fled into at the beginning of the episode (apparently only moments later), and Tommy says, "Well guys, only ten more years until Angelica is nice to us."