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The Snooze Button

Why is it very common to have a 9 minute snooze interval on alarm clocks, why not 10 instead?

By setting the snooze time to 9 minutes, the alarm clock only needs to watch the last digit of the time. So, if you hit snooze at 6.45, the alarm goes off again when the last digit equals 4. They couldn’t make it 10 minutes, otherwise the alarm would go off right away, or it would take more circuitry.


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4 Comments on "The Snooze Button"


Keesh says
October 20, 2015 @ 11:41

A clock


fivebee says
January 20, 2016 @ 11:24

Umm… That has nothing to do with the riddles.


Miranda says
April 12, 2016 @ 10:00

I’m confused


Me says
December 18, 2016 @ 12:03

It is a very weird explanation especially since my alarm (along with a lot of modern clocks) has a 5- and a 10-minute interval.


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