The 18th-century proposal for daylight saving time involved cannons and bells

Who Really Invented Daylight Saving Time · 7:32 · Video: Today I Found Out · Watch at the source

In short: Long before it became a modern standard, the concept of maximizing daylight was proposed as a way to utilize free solar energy. This video explores the early roots of the idea, tracing it back to a 1784 letter from Benjamin Franklin.

While many associate daylight saving time with the industrial era, Benjamin Franklin first touched upon the concept in a 1784 letter to the authors of the Journal of Paris. Rather than the modern practice of shifting clocks, Franklin's proposal focused on maximizing the time people spent awake while the sun provided free light.

His suggested methods were more auditory than mechanical: he proposed ringing church bells and firing cannons at sunrise. This early exploration highlights a long-standing human desire to synchronize social activity with natural cycles to improve efficiency.

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