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Converting a time difference calculation worksheet formula to a VBA Function

  1. 03-18-2012, 05:55 PM #1
    LoveCandle
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    Converting a time difference calculation worksheet formula to a VBA Function

    Hi everyone,

    I have the following worksheet formula to calculate the difference between two times with observance that end time is always greater than start time:

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    For Example: The difference between 08:00 PM And 02:00 AM is 6 hours

    Actually the function works just fine on the worksheet, but when I converted it to VBA using the following code:

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    The function gives correct result only when the start time is less than end time.

    Any suggestions?

    Regards,
    Last edited by LoveCandle; 03-19-2012 at 03:26 PM.
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  2. 03-18-2012, 06:46 PM #2
    shg
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    Re: Converting a time difference calculation worksheet formula to a VBA Function

    In Excel, a logical expression coerced to a number is 1 if True and 0 if False.

    In VBA, True coerced to a Long is -1, not 1.
    Entia non sunt multiplicanda sine necessitate
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  3. 03-19-2012, 06:21 AM #3
    LoveCandle
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    Re: Converting a time difference calculation worksheet formula to a VBA Function

    Do you mean that it is impossible to implement the same formula in VBA?
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  4. 03-19-2012, 11:34 AM #4
    shg
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    Re: Converting a time difference calculation worksheet formula to a VBA Function 

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  5. 03-19-2012, 12:51 PM #5
    LoveCandle
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    Re: Converting a time difference calculation worksheet formula to a VBA Function

    Sorry, It didn't work,
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  6. 03-19-2012, 01:17 PM #6
    shg
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    Re: Converting a time difference calculation worksheet formula to a VBA Function 

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  7. 03-19-2012, 03:25 PM #7
    LoveCandle
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    Re: Converting a time difference calculation worksheet formula to a VBA Function

    Thank you very much shg for the effort you exerted to help me, but unfortunately your last code doesn't give correct result.

    Anyhow, I solved the problem by linking the combo boxes with worksheet cells and do the time difference calculation on the worksheet and transfer the result to the user form.

    Here are my codes:

    Cell Y6 Formula:
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    ComboBox3 Code:
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    ComboBox4Code:
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    MyTimes Function:
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    Best Regards,
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