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Calculating Time: add additional hours

  1. #1
    Luvchyle
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    Calculating Time: add additional hours

    I need to record minutes then calculate the totals on a daily basis. Using the normal number formats doesn't work, because 60 minutes is shown as 0.60, not 1.00. So, 40 plus 40 is calculated as 80 not 1.20. Using the date/time formats doesnt work either, because the system wants to show the date. Similarly Custom Format hh:mm doesn't work, because the resulting figures are shown as a date.

    Can anyone please help?
    Last edited by Luvchyle; 10-11-2010 at 04:28 PM.

  2. #2
    Forum Expert daddylonglegs's Avatar
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    re: Calculating Time: add additional hours

    You should be able to use time formats, use a colon to separate hours and minutes so 40 minutes is entered as 0:40.

    You can then sum times, 0:40 and 0:40 added will give you 1:20 as required. Make sure result cell is formatted as [h]:mm (with square brackets) if the totals might be over 24 hours
    Audere est facere

  3. #3
    Luvchyle
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    re: Calculating Time: add additional hours

    how do i enter 1 minute, 0:60 or 1:00

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    re: Calculating Time: add additional hours

    0:01 for 1 minute
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  5. #5
    Luvchyle
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    re: Calculating Time: add additional hours

    ok it jus that 0:01 looks like 1 second, it just looks weird i guess

  6. #6
    Luvchyle
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    re: Calculating Time: add additional hours

    does it matter then that when i use the time format when i click on the cell i see the date in the tying box?

  7. #7
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    re: Calculating Time: add additional hours

    No, it shouldn't matter for your purposes.

  8. #8
    Forum Expert daddylonglegs's Avatar
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    re: Calculating Time: add additional hours

    You can ignore what's in the formula bar - that's dictated by your regional settings and can't be changed like a cell format - essentially they are two different ways of formatting the same data - the underlying value is what matters.

    Note that if you enter data with a single colon that's always interpreted as hours and minutes, so 12:34 is 12 hours and 34 minutes. If you want 12 minutes 34 seconds you need to enter as 0:12:34

  9. #9
    Luvchyle
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    re: Calculating Time: add additional hours

    Ok thanks guys appreciate the help.

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