Strangely enough, on Saturday, April 19, my friend Jim Martin sent me a copy of the Sunday, April 20, Zits comic strip, which was the first one that I’ve noticed with time travel.
Ignoring the space/time continuum helped.

Variants

(1)
  1. “Zits” by Jerry Scott and Jim Borgman (20 April 2014).
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Jerry Scott