In addition to the well-known comic book adaptation of The Time Machine, Dell and Gold Key comics had numerous movie and TV spin-offs in the 60s, some of which had time travel. Some were just one-shots (such as The Three Stooges Meet Hercules in Dell Movie Classics #208; and Hector Heathcote in 1964) while others were series (such as the short-lived two issues of The Time Tunnel in 1967). The second issue of The Outer Limits had a cover story, “The Boy with the Incredible Time Machine Saved the World,” which was reprinted in The Outer Limits #18. They were big on boys saving the world, usually from aliens. Tooter Turtle appeared in seven issues of King Leonardo and His Short Subjects, some of which were before August 1962, but their time travel pedigre is dubious because the issues I saw could have occurred in the present day.
Two scientists are hurled helpless into the lost world of time!

Variants

(1)
  1. Dell/Gold Key Comics, |pending byline|, in Dell Movie Classics 208, August 1962.