A Twist in Time (includes interdimensional travel)

An Acceptable Time by Madeline L’Engle
Anne Frank and Me by Cherie Bennett and Jeff Gottesfeld
Bearing an Hourglass by Piers Anthony
Blood Secret by Kathryn Laskey
“Blossom Culp” series by Richard Peck
Both Sides of Time by Caroline Cooney
The Boy who Reversed Himself by William Sleator
Charlie Bone and the Time Twister by Jenny Nimmo
The Cure by Sonia Levitin
“Danger Boy” series by Mark London Williams
“The Dark is Rising Sequence” by Susan Cooper
“Daughters of the Moon” series by Lynne Ewing
The Deadly Past by Christopher Pike (“Spooksville” series)
The Devil’s Arithmetic by Jane Yolen
Found by Margaret Peterson Haddix
Harry Potter and the Prisoner of Azkaban by J.K. Rowling
Here There Be Dragons by James Owen
If I Should Die before I wake by Han Nolan
“The Indian in the Cupboard” series by Lynne Reid Banks
“The Keys to the Kingdom” series by Garth Nix
King of Shadows by Susan Cooper
“The Magic Tree House” series by Mary Pope Osborne
Many Waters by Madeleine L'Engle
Mr. Was by Pete Hautman
Once Upon a Curse by E. D. Baker
Out of Time by John Marsden
Paint by Magic by Kathryn Reiss
“Pendragon” series by D. J. MacHale
Physik and Queste from the Septimus Heap Series by Angie Sage
Rewind by Jan Page
Shoeless Joe & Me: A Baseball Card Adventure (series) by Dan Gutman
Singularity by William Sleator
“Sons of the Dark” series by Lynne Ewing
Strange Attractors by William Sleator
“Stravaganza” series by Mary Hoffman
The Theif Lord by Cornelia Funke
The Time Garden by Edward Eager
“The Time Warp Trio” series by Jon Sciezka
Time Cat by Lloyd Alexander
Timeline by Michael Crichton
"Time ghost" by Welwyn Wilton Katz
The Transall Saga by Gary Paulsen
A Wrinkle in Time by Madeleine L'Engle
A Well-Timed Enchantment by Vivian Van Velde
“York Trilogy” by Phyllis Reynolds Naylor
Gideon trilogy by Linda Buckley Archer: The Time Travelers, The Time Thief, and The Time Quake.

YA/Adult Crossover from YALSABK
"The time traveler's wife" by Audrey Niffenegger
"Outlander" series by Diana Gabaldon.
Time and Again and From Time to Time by Jack Finney
Singing the Dogstar Blues by Alison Goodman
The Sterkam Handshake and A Sterkam Kiss by Susan Price
London Calling by Edward Bloor
Enchantment by Orson Scott Card
Archer's Quest by Linda Sue Park
Homeward Bounders by Diana Wynne Jones
Doomsday Book and To Say Nothing of the Dog, both by Connie Willis (adult for high YA)
Kindred by Octavia Butler (also adult for high YA)
Another Shore by Nancy Bond (may be hard to find but worth the search)
"The Man Who Folded Himself" by David Gerrold
Nick Hornby's "Slam."
The Thursday Next series by Jasper Fforde