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Convert 100ths of an hour to minutes

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  • Convert 100ths of an hour to minutes

    Is this correct? I have a time card that shows the worker clocked in at 7:04 and clocked out at 11:74 using a time clock that uses hundredths of an hour instead of minutes. I figured this guys total time to be 4 hours & 42 minutes by multiplying the hundredths (4.7 hours worked, .7 hundredths) by .6 - did I do this right? Thx.

  • #2
    Re: Convert 100ths of an hour to minutes

    Thats correct, 4 hours and 42 minutes. Though you multiply decimal hours by 60 to get minutes.

    11.74 hours - 7.04 hours = 4.7 hours

    4 hours +
    0.7 hours * 60 = 42 minutes

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    • #3
      Re: Convert 100ths of an hour to minutes

      Oh yeah, thanks...that makes more sense. Thx for your help!

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      • #4
        Re: Convert 100ths of an hour to minutes

        Where I work, we use these decimalised time clocks. A one hundredth of an hour is exactly 36 seconds. So, 12:00 noon is, well, 1200 on the time clock. 1201 on the time clock is 12:00:36 on a real clock. It goes like this:

        12:00:00 = 1200
        12:00:36 = 1201
        12:01:12 = 1202
        12:01:48 = 1203
        12:02:24 = 1204
        12:03:00 = 1205
        12:03:36 = 1206
        12:04:12 = 1207
        12:04:48 = 1208
        12:05:24 = 1209
        12:06:00 = 1210

        Where I work, the time clocks self-reset to match an atomic clock in Kentucky and thanks to propagation delays in phone lines, are a consistent 2 seconds slow compared to a wristwatch that self-resets to the Bureau of Standards atomic clock in Colorado, which is rigged to a radio transmitter. I do have that type of watch, and I routinely take a lunch break that is 30 minutes and 35 seconds long! I even announce "Last 10 Seconds!" at the end of the day. We punch out at 1542 aka 3:25:12 PM (not counting the 2 seconds slow).

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        • #5
          Re: Convert 100ths of an hour to minutes

          I love hearing these stories. The inner-geek in me thrives on information like this.

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          • #6
            Re: Convert 100ths of an hour to minutes

            is anyone here? could you please tell me what 36 hundreths of an hour is?
            thank you thank you

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            • #7
              Re: Convert 100ths of an hour to minutes

              Originally posted by Unregistered View Post
              is anyone here? could you please tell me what 36 hundreths of an hour is?
              thank you thank you
              0.36 h x 60 min/h = 21.6 min (21 min 36 sec)

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