Who invented the alarm clock and when?

The alarm clock was invented by Levi Hutchins, an American clockmaker, in 1787. Hutchins created the first mechanical alarm clock, which was designed to wake him up at a specific time in the morning for his work. However, the alarm only rang at 4 a.m. and couldn’t be set for different times. The first adjustable alarm clock, which allowed the time to be set, was created by Seth E. Thomas in the early 19th century. Since then, alarm clocks have evolved, incorporating various features like digital displays, snooze buttons, and more, becoming a common household device for waking up on time.