Before being bought by DC, All-American Publications had a 102-issue run with All-American Comics, which among other things introduced the Green Lantern and had an adaptation of Carl H. Claudy’s A Thousand Years a Minute in issues 7 through 12. However, the episode in #7 was actually more the wrapping up of an earlier serial (also by Claudy and under the umbrella of Adventures in the Unknown) called “The Mystery Men of Mars,” and the actual time-traveling began until issue 8.
If you stepped off this platform you’d be cut in two just as if you stepped off a fast moving train! You can’t be in two different “times” any more than you can be in two difference places at the same moment!

Variants

(1)
  1. “All-American Comics” by Carl H. Claudy, in All-American Comics 8, November 1939.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Carl H. Claudy