Why are there so many time zones?



  1. 0 Votes

    Time zones have been created to adjust for the fact that, at any given point, it is nighttime on one half of the planet and daytime on the other, as caused by the Earth’s rotation relative to the sun. Since we measure time according to this rotation (one day = one rotation), we can throw off our sense of time by traveling with or against the rotation. In an attempt to standardize time, so that “8:00 p.m.” is roughly night-time anywhere in the globe, we had to create many time zones. This way a man in Shanghai talking about 7:00 a.m. will still be talking about morning, like a man in New York, albeit in different time zones.

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