This ad shows the flat earth clock juxtaposed over the Gleason map that you see in the UN logo https://www.youtube.com/watch?v=7jWer_BohS4

Its probably worth researching why there are so many more time zones in the "southern hemisphere" while you're at it

Don't consider myself a "flat earther" but it is curious how everything that my senses can perceive lends to a motionless plane where water always finds its level