Out of Time, Out of Mind

A strange situation where a character experiences a great deal of time relative to everyone else yet does not act any different.

Bob's particular Quest has driven him to use Time Travel, or perhaps travel to a world where time runs Year Inside Hour Outside. After a long and arduous quest -- and we mean long and arduous, as in months, years, perhaps even decades or centuries, he returns home. And... goes right back to being Bob. He might not have visibly aged; his friends, just as he left them, are still talking about their everyday concerns instead of the fate of the universe; his house may still be there where in the future was a barren ruin, he should experience some shock. Even if he doesn't have memories of a Bad Future, living for a few extra decades, regardless of whether the world is different, should lead to a very noticeable change in personality. But Bob's personality just about never does, except in the most trivial way.

A case of Status Quo Is God. See Year Inside Hour Outside, Groundhog Day Loop, and The Slow Path for causes of the extra time.

Anime and Manga

 * Averted in the Suzumiya Haruhi novels, where being trapped in a time loop for thousands of repetitions is a likely contributing factor to in the fourth novel (no one else retained conscious memory of the loops).
 * In Higurashi no Naku Koro Ni, after a century of being caught in a Groundhog Day Loop that nobody else remembers,  has a lot of practice acting like a child, occasionally slipping into an emphatically different tone of voice and giving the kind of serious advice you'd expect from someone with a hundred years of experience, and sometimes falling into a bout of depression and frustration that peeks through the façade.
 * Zig Zagged in Puella Magi Madoka Magica. To the rest of Mitakihara, Homura is a cold and condescending person all the time.

Comic Books

 * In the X-Men comics, Scott Summers and Jean Grey get sent to the future in different bodies to raise Cable. Despite having lived for 20 years together in this future, they don't change.
 * And yet, Wolverine noticed just by looking at Jean that something was different about her, saying something to the affect that her eyes looked like they'd seen a lifetime of pain as opposed to a few weeks in the Bahamas. And aside from a now-new psychic rapport with Cable, nothing else changed.
 * Just before the end of the last Doctor Strange series in the 1990s, Doctor Strange spent 5000 years fighting the War of the Seven Spheres in another dimension. Given any reasonable age for him, that means at least 98% of his entire life was spent in this one plot. From a look at him today, you'd never know it.
 * Plastic Man spends about three thousand years as a disembodied consciousness spread over thousands of miles of ocean. By the time he reforms himself, he admits that he'd suffered unspeakable agony, gotten used to it, gone insane, then gone sane. Mildly averted in that he does change somewhat (leaving the Justice League of America to be a better father to his kid) but not entirely.
 * Inverted in Watchmen, as John Osterman is changed by his odd conception of time and inability to age, so that he is gradually losing his humanity and becoming more and more apathetic. He can no longer relate to what is happening in his present because he is simultaneously experiencing past and future as well, and becomes increasingly distant from those around him as a result. All this despite being within a normal human lifetime chronologically and just having a different perspective on it.
 * In one comic, Superman and Wonder Woman spent centuries fighting together against demons that assault Valhalla. While this has occasionally been referred to (Diana mentions it to Lois at one point), it doesn't seem to have had much of an effect on either of them.
 * Then again, this is Superman and Wonder Woman we're talking about. To them, it could easily have seemed like nothing more than an exceptionally long line of Tuesdays.
 * While it doesn't completely work, its supposed to show Superman's strength of will. He manages to remain faithful to Lois for 1000 years with Wonder Woman sleeping at his side every night. And while she never pushes the issue, its clear she's ready to go there if he is.

Fanfic

 * The basis of any Peggy Sue story; these are often the exception to the 'no personality change' clause.

Film

 * Notably averted in Groundhog Day. While it doesn't use time travel, the protagonist, Phil Connors, is trapped in limbo for what the Word of God said was around ten years (so, 3652 repetitions or more), and becomes a much better person by time he is freed, as well as learning several foreign languages, memorizing thousands of books and learning to sculpt and play the piano like a master. Notably, (although it's played for humor) he is shown committing suicide using various methods for a long stretch of time, understandable behavior of someone in this scenario.
 * The original script had him being stuck in time, improving himself each day, for ten thousand years (3652425 repetitions of the same day).
 * Averted in Back to The Future, when Marty, after spending a week in The Fifties, overreacts to seeing Jennifer again and she replies, ironically enough, that "you're acting like you haven't seen me in a week."
 * This arguably happens to Libby in Double Jeopardy. She serves a six-year prison sentence in the story but, when she leaves the prison, it seems like she had only been in it for a day or two.
 * In Jumanji, when the kids return to their normal ages, they apparently remember all of it.
 * Sort of. The "kids" that are adults for most of the movie remember everything. The kids who start up the game the second time, having apparently regressed to never being born when the game undoes everything, remember nothing.
 * Not so. In the final scene, during the Christmas party to which the older players have invited the family of the younger players, they clearly know each other, judging by the expressions on the younger players' faces.
 * Averted in Frequently Asked Questions About Time Travel. The three protagonists are randomly skipping through time whenever they enter the men's room of a pub. One character goes back into the bathroom alone, then appears a few seconds later with a big beard and stories implying that, from his perspective, he had been trapped in a Bad Future for about three years. He spends the rest of the movie slightly feral and kinda... off.
 * Played with at the end of Bill and Teds Bogus Journey. Literally as they're going on stage for the big battle of the bands, the titular dimwit duo suddenly realizes that they still don't know how to play very well. Then the realize they have a time machine. The two, their Medieval princess girlfriends, the Grim Reaper, and the alien/aliens known as Station take a year long break to learn how to rock out, Bill & Ted marry their girlfriends, go back to the Medieval era for their honeymoon, have kids, and grow epic beards that would make ZZ-Top proud. The time machine pops back all of a tenth of a second after it took off, and despite these radical changes their speech patterns, attitudes and physical appearances haven't changed at all (save for said epic beards).

Literature

 * Averted in William Sleator's Singularity. The protagonist spends about a year inside a timewarp, which is about an hour outside. Changing his personality was his goal going in, and it works, especially because the timewarp is only about 8 feet across, and he's the only person in it.
 * In The Lion, The Witch and the Wardrobe the four Pevensie children spend twenty-odd years living in Narnia as kings and queens, before coming back to our world not a day older... and with no trouble at all in adjusting to their old lives as children in our world. In fact, by the end of the final book Susan doesn't believe in the existence of Narnia any more despite the fact that she's lived there approximately half her life. There's a piece of Fridge Logic that doesn't always occur to everyone, although there are a couple of one-off lines indicating their memories of adulthood faded unnaturally quickly.
 * Slightly averted in the new Prince Caspian movie, where the fact that they were "adults once" is actually a bit of a plot point/arc for the characters.
 * Indeed, in the book they soon realize, on arriving back in Narnia, that they used to be highly skilled adults there, and while they have reverted to child bodies, their skills are still intact. Edmund impresses the dwarf Trumpkin by beating him in a sword-fight, and Peter is later confident enough to challenge Miraz the usurper, and Susan is still an excellent archer.
 * Averted in the Nightside novels. When John Taylor encounters or psychically views his closest friends as they exist in the future, not only has their behavior and demeanor changed over time, but
 * Averted in The Jaunt, a short story by Stephen King, in which
 * If I remember correctly, there is a bit of oddness in the fact that the protagonist  So... ?
 * "Memorie di un cuoco di un bordello spaziale" (seguel of "Memorie di un cuoco d'astronave") by Massimo Mongai. The protagonist Rudy "Basilico" Turturro lives hundreds of incarnation in a single long, lucid dream caused by an alien disease. Only extensive medical assistance prevents death by starvation (the disease accelerates the metabolism) and by the shock of returning to the real world. The trope is averted as he requires psychiatric help later, as the lucid dream was exceptional, and he regrets the lost.
 * "Il gioco degli Immortali" also by Masomnipotenti. The protagonist is kidnapped by omnipotent entities to be a pawn in a sort of betting game, that lasts for years. In the end he is released, just a few instants after the kidnapping. The entities restores its physical body (less fake teeth, for some reason), but left him all memories. The trope is almost averted anyway: while he seems ok, we really know nothing about him before the start of the game, so it's hard to know if he changed at all.

Live Action TV
"Ronald D. Moore: I've always felt that the experience in "Inner Light" would've been the most profound experience in Picard's life and changed him irrevocably. However, that wasn't our intention when we were creating the episode. We were after a good hour of TV, and the larger implications of how this would really screw somebody up didn't hit home with us until later (that's sometimes a danger in TV – you're so focused on just getting the show produced every week that sometimes you suffer from the "can't see the forest for the trees" syndrome). We never intended the show to completely upend his character and force a radical change in the series, so we contented ourselves with a single follow-up in "Lessons"."
 * Captain Picard, in the Star Trek the Next Generation episode "The Inner Light", lives an entire lifetime in twenty minutes. (Well, okay, not an entire lifetime, but they probably didn't want to deal with the weirdness of Picard waking up as a newborn baby.) The only major difference is that he now plays the flute, and one reference in a later episode where he admits it caused him to (somewhat) rethink his priorities about what he gave up in his personal life to advance his career.
 * In the later episode, Picard describes his memories of the experience as dreamlike, in an apparent bit of retroactive justification.
 * Ronald D. Moore later commented on this:

When asked about it at Comic-con, John Barrowman admitted that it would probably not come up again, specifically. The explanation given was more or less that Jack retreated into himself so that it wouldn't have as harsh an effect on him. "WHERE. IS. MY. WIFE?"
 * A similar thing happened to O'Brien in Star Trek Deep Space Nine, where he served out an illusionary twenty-year prison sentence lasting only a few hours of real time. Slightly averted, because the actual episode was about him dealing with readjusting to society and coming to terms with what he did when he was a prisoner, but (uncharacteristically for DS9) it still didn't have any noticeable long-term effect.
 * Happened in Red Dwarf several times, including one episode where Rimmer spent over 600 years in a society of his own clones, who have kept him in a dungeon for most of that time. At the end of the episode, they get back to their ship using a teleporter which, it's been established, has a slightly unreliable time component, so they arrive to find their other selves already there. Lister assumes they've landed in the past and starts giving dark hints to the other Rimmer about what's about to happen to him. The other Rimmer replies, "Rimmerworld was weeks ago," with a casual air that this troper feels is completely inappropriate given what he's been through.
 * But then that was probably the point. This is Red Dwarf, after all.
 * Also, in one of the books, Lister is trapped on a destroyed Earth for the the better part of his life with nothing but giant cockroaches for company. He's mostly the same as he was before he left the Dwarf.
 * Justified in the second season of Eureka, where the main character does remember everything and acts differently. He is forward and way too personal with his future wife and forgets that his daughter isn't old enough to drive. Eventually his mind is wiped of future events and he returns to normal.
 * When a team  is sent to an alternate reality by way of the past, they spend the entire first half of the fourth season trying to reconcile the differences between the time periods. We're still waiting to see if it continues to be an issue.
 * In the Torchwood episode "Exit Wounds", It's too early to tell whether this incident will ever be referred to again.
 * Averted by Buffy the Vampire Slayer and Angel, whose mythos establish that in the "hell dimensions," years and years and years pass before any noticeable length of time has gone by on Earth. So when Angel is sent to one after the season two finale, he spends the following four or five months before his return enduring what Giles describes as basically being centuries of unimaginably horrible torture. Sure enough, he arrives back on Earth completely feral and seemingly with no memory. It takes him several weeks of rehabilitation with Buffy before he's functional around other people again, and he's never the same as he was in the first two seasons.
 * Similarly, Fred and Connor were deeply affected by spending five and seventeen years in hell dimensions (far fewer than Angel) and they weren't even being tortured like Angel was.
 * In the Season 6 episode "After Life," Spike informs the newly-resurrected Buffy that she was dead for "147 days." He asks her, "How long was it for you...where you were?" To which Buffy responds vaguely: "A lot longer." It screwed up her life for some time afterwards, and she never quite got back to her old self..
 * In the Stargate SG 1 episode "Window of Opportunity", Teal'c and O'Neil are stuck in a time loop for at least 3 months, 10 hours at a time. During the episode they, among other things, learn how to juggle and a good amount of the Ancient language. There's not much evidence that any of the changes are permanent.
 * The last episode of SG-1 has Teal'c traveling back in time after spending 50 years or so on the Daedalus. In the subsequent movies and on Stargate Atlantis, all he has to show for it is a goatee. This is despite the fact that he should be older than Bra'tac was at the start of the series (he was 101 years old in season 4, while Bra'tac was 134).
 * He does seem a little wiser when he shows up in Stargate Atlantis to coach Ronon. That is until they start a slugfest with neither being the victor. As far as his white hair, he could've easily dyed it.
 * Played straight in Supernatural, Dean is only slightly changed by spending 40 years in Hell - Sam has changed more, even though it was only 4 months for him.
 * in the series 5 finale of Doctor Who. The series 6 premiere confirms that he's still him and remembers those events after history is fixed, and . He apparently spent almost 2000 years without noticeably changing in personality, falling in love with someone else, or forgetting his old life.
 * He has changed a little, especially when.
 * He has changed a little, especially when.


 * Averted in The X-Files in the Groundhog Day scenario episode Monday where a single day keeps repeating itself with only one person being aware of the loop. She realises something needs to be done to break the loop, and her numerous attempts to do so leave her visibly drained and frustrated from the constant repetitions.

Radio

 * Marvin the Paranoid Android in ~The Hitchhiker's Guide To The Galaxy~ spent eons waiting for the crew until the Restaurant at the End of the Universe was built and he was parking cars. More of a joke, because Marvin's personality is permanently sulking and won't change no matter how much time passes. In the books, he eventually becomes several times older than the universe itself.
 * Averted in So Long and Thanks for All the Fish: Arthur Dent, having hitchhiked around the galaxy a few times, finds himself returning to an Earth set after he left, but not as far after as he actually spent bumming around (more than ten years have passed by his clock, a few months by Earth's clock). He explains it all by saying he went to Southern California and had a "face drop", supposedly all the rage there: his friends don't believe him, but they can't figure out how he's changed so much.

Video Games

 * Subverted with Higurashi no Naku Koro Ni. behaves like a child, but it's revealed to be an act so as not to freak anyone out.
 * CROSS†CHANNEL averts this.

Western Animation

 * In the Futurama episode "Roswell That Ends Well" Bender gets left in the past and picked up again in the future, much like Marvin in The Hitchhiker's Guide mentioned above. Bender's reaction is quite different from Marvin's. When asked what it was like being buried in a hole for a thousand years, Bender replies "I was enjoying it until you guys showed up."
 * In the movie - Bender's Big Score, Bender does this about 20-30 times with no noticeable change, although that might be explained by the fact that he spent most of that time doing nothing in a limestone cavern. Then again, after
 * Also subverted in Bender's Big Score when