Sunday, May 20, 2012

Clocks: How many times a day does the bigger hand cover the little one?

December 1, 2010 by  
Filed under clocks

On most clocks:
If the hands are at midday/midnight the hour hand covers the hours hand – though, how many others times are there where they are actually one above the other? An example would be 6:30 though it isn’t in any watch or clock. Good luck!

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Comments

11 Responses to “Clocks: How many times a day does the bigger hand cover the little one?”
  1. rdy2retire2001 says:

    3:15 and 8:45 come to mind

  2. doc says:

    I’m not sure, either 12 or 24, don’t think I followed the question real well, but I do know how to tell when it’s midnight at Michael Jacksons house, it’s when the big hand is on the little hand. haha

  3. Grandmaster_D says:

    24 times in a day. Hands will align at different points around the clock. Noon and midnight are straight up, as you know. Hands overlap around 1:05-1:06, and continue on thru all the hours.

  4. JAMES B says:

    In a 24 hour period from EXACTLY midnight to midnight, there are 25 crossings of the hands.

    Midnight, midday, the following midnight, plus one every hour in between.

    .

    ADDENDUM :

    Having been away and though about this, the answer is actually 23 crossings in an EXACT period of 24 hours. Thus:-

    00.00 – Midnight
    01.05
    02.11
    03.16
    04.21
    05.27
    06.32
    07.38
    08.43
    09.49
    10.54
    12.00 – Noon
    13.05
    14.11
    15.16
    16.21
    17.27
    18.32
    19.38
    20.43
    21.49
    22.54
    00.00 – Midnight

    Times other than 12 am/pm are obviously approximate.

    This just goes to show that often an apparently simple question turns out to be somewhat more tricky!!!

    .

    .

  5. SV says:

    At 6:30 the hands are NOT directly in line. The minute hand points at 6 but the hour hand is half way to 7.

    The answer to your original question is that the hands are directly in line 11 times, assuming it’s a standard 12 hour clock.

  6. Krystal J says:

    24 times

  7. boycat99 says:

    The minute hand passes over the hour hand once every hour…duh

    How many hours in a day?

  8. ritsarofrassvet says:

    I believe it’s 23 mate…ie: 12:00 (noon), 1:05:30, 2:11, 3:16:30, 4:22, 5:27:30, 6:32:30, 7:38, 8:43:30, 9:49, 10:54:30, 12:00(midnight), then repeat the rest.

  9. Manz says:

    11 times

  10. rabid_dog says:

    About 60 times, at every interval. Owing to the thickness of the hands, they cannot meet more than this, since then those are considered to be part of the former meeting.

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