BRAIN TRIVIA

Logic Puzzle: How many times do the hands of a clock overlap in a day? 🕰️

Hint:

The hour and minute hands only overlap when the minute hand “catches” the hour hand (and that doesn’t always happen at the top of each hour).

Solution:

The hands overlap 11 times every 12 hours, or 22 times in a day.

  • The minute hand moves much faster and goes all the way around the clock every hour.

  • The hour hand moves slowly and only moves a little each hour.

  • Because the minute hand has to “chase” the hour hand, it catches it a little later each time and not exactly at the top of each hour.

Here are the approximate overlap times:

  • 12:00 AM

  • 1:05 AM

  • 2:11 AM

  • 3:16 AM

  • 4:22 AM

  • 5:27 PM

  • 6:33 AM

  • 7:38 AM

  • 8:44 AM

  • 9:49 AM

  • 10:55 AM

  • 12:00 PM (the start of the next 12 hour cycle)

How was this week's brain teaser?

Login or Subscribe to participate

Reply

Avatar

or to participate

Keep Reading