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The first alarm clock could only ring at 4 a.m.

Wacky WorldHistory

Levi Hutchins of New Hampshire built a personal alarm clock in 1787 that rang only at 4 a.m. — the time he wanted to wake up. He never patented it.

Share on WhatsAppSource: en.wikipedia.org

Another wacky fact → All facts

27 September 2026 by

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