Empirical Earth · The Boomerangs — Flat-Earth Proofs That Backfire

“It’s daytime here and night there”

The claim

“Time zones are just a spotlight Sun on a flat disc.”

What is measured

Earth turns 15° per hour, so your antipode is ~12 hours apart. Call them and it’s the dead of their night, on the far side of a ball.

What would show this is wrong

simultaneous daylight at true antipodes, or a lit fraction far from ~50% with no sharp terminator.

Sources

  1. Time zones & Earth’s rotation. Earth turns 15°/hour (360° in 24 h); ~24 zones referenced to UTC, with antipodes ~12 h apart and ~50% of the globe in daylight at any instant. time zone . link
  2. The International Date Line. Because a rotating Earth is divided into eastward and westward time zones, the two progressions meet near the 180th meridian, where a boundary must exist at whic link
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