With the 360° daily rotation of the earth, the sun is moving 15° each hour which leads to the formation of 24 time zones. Today, one can visit the Royal Observatory and straddle this 0° meridian with one foot in each hemisphere. This 0° meridian divides the Eastern from the Western Hemisphere. This was for both for longitude and timekeeping. settled the matter where it was agreed to establish a single "prime" meridian (0° longitude), passing through Greenwich. Convert timezones and find the best time for your meeting in
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