Clocks are used all over the world and whereever you go the clock's rotate in clockwise direction. This standard for the rotation of clock hands is regularly used to refer to the direction of rotation - "Clockwise and Anticlockwise". The explanation below also tells you why we celebrate New year at Midnight.
The early watchmakers hailed from Northern Hemisphere where shadows on sundials moved West to East as the day progressed. The direction of the shadow of the sun dial is the reason for the direction of the clock.
What about the numbering system? Why are the numbers placed so?? Now imagine the dial of your watch as Earth. The hand of the clock moves from West to East through Noon. During the day time, if you hold your watch upright, the HOUR hand will approximately point towards the SUN for most of the time on a Sunny day.
This strange way of placing the numbers on the dial has made us to celebrate New year and our Birthdays at mid-night.
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