A Perspective On Time Poster by Wait But Why (18"x24")

Size Guide

This poster is pretty impressive, crunching all of time from the Big Bang to Today into a normal-sized, 18" wide x 24" tall poster. The poster is G-rated, so it's classroom- and kid-friendly.

This is a poster of our original post, Putting Time in Perspective. You can also find a poster of the prettier, more bare-bones version of our post, made by Visual.ly, and a long, skinny version of this poster, on the poster home page.


This original Wait But Why poster is printed on acid-, lignin-, and chlorine-free paper that is also pH buffered with calcium carbonate for a true archival sheet.

  • 120 gsm
  • Thickness 5.5 mil
  • ISO Brightness 90%
  • Opacity 94%

Due to the fragile nature of the posters and shipping couriers, we will not be able to accept returns on these.

Sizing Guide

Measurements are taken of the front of the shirt.  For example, a Men's Small says Chest = 18", which means it measures 18" from left to right of the front of the shirt.   The full shirt circumference = 36" (front and back combined).