When a meteor lands on the beachfront airfield of our narrator and his partner Charlie King, Charlie realizes that it provides a space-time portal through which they view the death-at-sea of Charlie’s ex-fiancée.

Twentieth-century American Ronald Stratton and Arthurian damsel Elaise find themselves in a land with people from all ages as well as predators from the 400th century.

This may be the earliest use of something akin to a “wheel of time.”

Unassuming Gerald Cambray, a professor of Latin at Harvard in 1939, has a dizzy spell and wakes in Paris of AD 1263 where his accent in speaking Latin is considered odd and his makeshift plan to earn a living by teaching astronomy brings dangers that even his brazen, swashbuckling young student, Guy of Salisbury, might be unable to forestall.

A man, dazed from running into a temporal snag, appears in a radio factory, whereupon (before returning to his own time) he makes a radio that’s actually a Twonky, which promptly gets shipped to a Mr. Kerry Westerfield, who is initially quite confounded and amazed at everything it does.

Because of the story’s opening, I’m convinced the Twonky is from the future. The “temporal snag” that brought it to 1942 feels like an unexpected time rift to me, although the route back to the future is an intentional journey via an unexplained method.

On an artist retreat, a man gets blown 100 years into the future where, among other things, group marriage and group parenting are the norm.

In the 1950s, a retired man in New York City speculates on a variety of cases of odd temporal occurrences such as the woman who realized that the old dog who persistently followed her in 1947 was actually the puppy she adopted several years later. And then there was the now famous case of Rudolph Fentz who seemingly popped into Times Square on an evening in the 1950s, apparently straight from 1876.

Professor Fallon’s research into artificial suns may not be taken seriously today, but there are other times where it could be the very thing that’s needed.

RAF pilot Clive St. George is a snooty chap because of his fine ancestry until one day he has motor trouble while flying through a storm.

What do you do when your one-man spaceship loses an argument with a meteor, and the only way to repair the rudder demands two people? “The Seventh Voyage” is the eleventh tale of Stanisław Lem’s space traveler Ijon Ticvhy, but I believe it’s the first where the hero also wrangles with time.

Hugh Farnam makes good preparations for his family to survive a nuclear holocaust, but are the preparations good enough to survive a trip to the future?

In his blog, Fred Pohl wrote about how Heinlein’s agent gave permission for Pohl publish the novel in If and to cut “five or ten thousand words in the beginning that were argumentative, extraneous and kind of boring” (and Pohl agreed to pay full rate for the cut words). But apparently, Heinlein “went ballistic” when he saw the first installment, so much so that when the book appeared as a separate publication, Heinlein made sure people knew who was responsible for the previous cuts by adding a note* that “A short version of this novel, as cut and revised by Frederik Pohl, appeared in Worlds of If Magazine.”

* The version of Heinlein’s note that Pohl recalled was much funnier than Heinlein’s actual note in our timeline, but sadly, we have lost track of where we saw Pohl’s version.

The writer, David L. Hewitt, took chunks of plot and script from The Time Travelers (1964), swapped the blonde for a brunette, swapped the accidental time gate for an accidental time rift that drags the whole lab through time as if it were a time ship, added a anachronistic dinosaur, and ended up with an unwatchable movie.

Like the 1964 version, this version has a brief mention that it’s impossible to change events that have already happened, but unlike the original, the montage at the end of the film is mere chaos that no longer reinforces the idea of a single deterministic, nonbranching timeline. Despite that, I enjoyed the consequences of the villainous character running into himself, but at the same time, I dismayed at the discussion of how meeting yourself could instantly cause a disastrous explosion or implosion or maybe something-or-other (the audio was unintelligible at 1:12) would cease to exist. (I pray that the space-time continuum wasn’t in peril).

Among the original Apes movies, only this one had true time travel; the others involved only relativistic time dilation, which (as even Dr. Milo knows) is technically not time travel. But in this one, Milo, Cornelius, and Zira are blown back to the time of the original astronauts (given the violence of the explosion, we’re going to call it a time rift) and are persecuted in a 70s made-for-TV manner.

After an hour or so of mundane conversation and weird happenings—a triple supernova, a UFO, a tiny mannequin/alien, and creepy lights, and alien monsters transporting in and out—the Williams family and their horses are transported through a time-space warp to an unknown time for the other twenty minutes of the movie. (The creepy lights stick around, too.) It’s hard to tell for sure, but I think they’re going to live out their lives amongst the weird lights and crystal structures of this new time.

Observer Warren Lasky is aboard the U.S.S. Nimitz when a storm takes the carrier back to the day before the Japanese attack on Pearl Harbor. Should they prevent the attack? What will be the consequences of saving a politician who may become Roosevelt’s running mate? Then the ship is returned to the present before they can do anything vaguely cool.

A boy’s bedroom is invaded by six dwarves who have stolen The Supreme Being’s map, which naturally leads both boy and dwarves on adventures through time.

Seaman David Herdeg and his pal are thrown from 1943 to 1984 during a naval experiment gone awry, and in that future, David is the only one who can save a missing town (provided he can dodge enough bullets and perhaps win the heart of Allison Hayes).

Tasco Magnon, time traveler, decides to take his new bride on his next trip through time—a quest to find the mythical Knot in Time—where the two of them get trapped, and only one can return.

After Smith’s death in 1966, the story was completed by his wife, Genevieve Linebarger, and sold to Harlan Ellison’s The Last Dangerous Vision, but that anthology was endlessly delayed. So in 1987, a translated version of the story was published in a French collection of Smith’s stories, and that was the first published version (although we’ve listed it as an English story, since that’s how it was written). The English version was finally published in Smith’s 1993 complete short science fiction collection by NESFA. By then, Ellison’s rights to the story had expired, although that didn’t stop him from suing NESFA.

To ward off the Black Death, young Griffin, local hero Connor, and others from their village plan to dig a hole through the Earth where they’ll give an offering to the powers that be, but instead, they end up digging a tunnel to a marvelous twentieth-century city.

Joe Buchanan invents a weapon that’s meant to be so terrible it will end war forever, but the weapon causes time rifts, one of which takes him (and his futuristic talking car, a.k.a. his electric carriage) back in time to where he meets Dr. Frankenstein (a standoffish man, but willing to talk science), Frankenstein’s monster (who is fascinated with the talking car), and Mary Wollstonecraft (a budding author).

The film did a good job of bringing Brian Aldiss’s book’s premise to the screen, with a better pace than the book, but the short dream sequences were ineffective for me and Dr. Frankenstein is more of a clichéd villain than in the book.

This first book of the multi-author series tells of how teens Dak (a history buff and odd duck), Sera (a science nerd), and Riq (a member of the secret Hystorians society) end up as the only ones who can save the world by fixing breaks in time that changed what was meant to be. Their first mission—saving Columbus from a mutiny that was meant to fail—is a disquieting choice that I would not choose as an introduction of history to children. For starters, they are choosing to save the man who brought genocide to the Americas. And to boot, in the broken world where the mutiny succeeded, his three ships still completed their voyage with no noticable change to subsequent centuries (apart from Columbus resting at the bottom of the Atlantic).

Abby speculates about the origin of a bullet covered in sixty-year-old mold. P.S. If you are an N.C.I.S. fan, be sure to also check out the short Brian Dietzen film One Minute Time Machine.

When fourteen-year-old Victorian waif Riley shows up in the 21st century on seventeen-year-old FBI Agent Chevie Savano’s watch, the two of them pair up and head back to the late 19th century to escape Riley’s evil pursuer.

Although the book involves wormholes and scientists, it’s really a quantum fantasy, wherein an ordinary fantasy has the word “quantum” scattered throughout in key places, typically before the word magic, magician, or wormhole. Nevertheless, we’ve listed it as science fiction to match its publicity material.

It would seem that Jack Finney got it wrong in his 1951 story “I’m Scared.” But never fear! C. R. Berry tells us the true story of how a certain Mr. Rudolph Fentz came to find himself in front of a cab on a busy street next to Times Square.

While roleplaying as a 19th-century lady’s maid, vigilant FBI agent Kate Donovan finds herself thrown back to 1815 England where she fights the norms and mores of the time and solves a serial murder case. She hopes that solving the case will prompt her to be thrown back to the 21st century, but alas she seems fated to stay where she is to star in a series of mystery books along with her 19th-century host, the Duke of Aldrich, and his marquis nephew, the debonair Alex.

• 1. A Murder in Time (April 2016
• 2. A Twist in Time (April 2017
• 3. Caught in Time (July 2018
• 4. Betrayal in Time (July 2019
• 5. Shadows in Time (August 2020

The crash of a 1941 World War II plane in a 21st-century Kansas field sets off a chain of plots and subplots involving the pilot, a mother on the run, a precotious young boy, a government agency, and multiple jumps through a time rift.

A church group, knitting in the Fellowship Hall, attempts to teach Jane, a new knitter, how to cast on. They realize her dropped stitch has created a wormhole when Beverly, a member of the group, falls into it. They can see she has gone back in time, but are somehow able to reach into the wormhole and pull her back out. They spend the next several minutes debating which Biblical event they would like to witness. The Pastor eventually arrives and interrupts them, causing a disaster which, fortunately, does not result in any loss of life.

After his parents break up, Vincent visits his Dad’s childhood home where Auntie Jeanne encourages him to explore—without even putting that cursed well off limits, the very well where Dad lost his best friend back in the summer of ’85!

While on medical leave for his mental health, police detective Darius Lafaux is called back in to investigate a case that turns into multiple murders of men who look exactly like himself.

Tess is a geologist (because, of course, geologists control the time travel of the giant ancient machines) and a member of the Daughters of Harriet (Senator Harriet Tubman, that is, from 19th-century Mississippi). On the surface, the Daughters are time travel scholars, but in reality, Tess and her fellow Daughters are fighting a pitched changewar for women’s rights against the oppressors known as the Comstockers. One more thing: While she’s at it,Tess also hopes to also save the souls of her teenaged self and her underground feminist punk friends in the 1990s, with a particular focus on their vigilante killing spree and young Beth’s abortion.

Sam Taylor, a carpenter remodeling houses with his brother, feels ungrounded in 2019 until he uncovers a century-old photograph of a young bride along with a matchbook from a 1919 speakeasy. Like everyone else, we wondered at the end who Evelyn’s child is. Sam might be the father if a pregnant Evelyn traveled forward a second time, but that seems unlikely. I enjoyed that the writers left things open for us to wonder, and I also enjoyed the carefully constructed single static timeline.

After a dogfight, a World War II plane flies through a time rift and into a 21st-century field near Dayton, where a single mom saves the pilot from the wreckage and her step-son saves the pilot from other dangers.

The prologue to the third Max Einstein book tells us that twelve-year-old genius do-gooder Max traveled as a baby from 1921 to the early 21st century when an experiment in her genius parents’ basement went a little ca-ca. Later on, Einstein himself makes a cameo appearance, possibly by opening some kind of communication line from the past to Max in her moment of need, but nothing else crops up in the way of time travel. I suspect that a truly genius rebel child would toss this aside as being condescending, preachy, one-dimensional, and melodramatic (not in a good way), as well as innacurate in most of its science and guilty of oversimplifying complex world problems.

Forty-year-old high school biology teacher Dan Forester is drafted for a seven-day tour of the future where he must fight what seems to be a losing cause in the war against bug/T-rex aliens.

Captain Nova Kester travels back from a devastated future to warn an energy mogel about the impending climate cataclysm, but only young Nas takes her seriously. That happens when time travel causes you to revert to 12 years old.

Audra Cobb is pulled through time rifts from one parallel universe to another with a bit of time travel thrown in. I think the parallel universes are a literary mechanism to explore daydreaming about what might have been while under the spell of limerence.