Why Do Clocks Turn Clockwise?
Every day we glance at a clock without giving its direction a second thought. Clockwise simply feels natural. But why does time move that way?
The answer has nothing to do with clocks themselves. It begins thousands of years ago with some of humanity's earliest timekeepers: sundials. In the Northern Hemisphere, the shadow cast by a sundial moves from left to right as the Sun crosses the sky, tracing the same direction our clock hands still follow today.
What seems like an obvious design choice is actually a surviving tradition that stretches back through ancient civilizations, early astronomy, and the first attempts to measure the passage of time. Modern clocks inherited a pattern established long before gears, springs, or electricity ever existed.
Questions like this are at the heart of the Second Look Investigation Library. Many everyday things have remarkable histories hidden in plain sight. Sometimes the most familiar parts of our world have the most surprising stories.
Question Everything.
Explore the complete investigation below and discover why clocks have been turning clockwise for centuries.
