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How do I join separate date and time columns into a single date time column?

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    How do I join separate date and time columns into a single date time column?

    My data is currently formatted with a separate column date (5/08/2009) and time (11:16:00). I need to combine them into one datetime column that reads like this (5/08/2009 11:16:00). I have tried the using the =A1&" "&B1 formula as well as =concatenate but both give me this number 39941 0.469444444444444. Acceptable formats for the program I am using would be dd/MM/yyyy H:mi or yyyy.MM.dd H:mi:s. I am using 24hr time. Please help. I have over 1400 data entries and really do not have the time to retype them all. Thank you.

    -Mitch

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    Forum Guru AlKey's Avatar
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    Re: How do I join separate date and time columns into a single date time column?

    Use Sum function

    =SUM(A1,B1)

    Then apply format
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    Administrator FDibbins's Avatar
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    Re: How do I join separate date and time columns into a single date time column?

    What you need to understand about dates and times in excel is...

    a date is just a number representing the number of days passed since 1/1/900...and then formated in a way that we recognise as a date. So, for instance, today (Thu Mar 2016) is actually 42453

    Time is actually a decimal part of 1 (day), so 06:00 AM is 0.25, 12 noon is 0.5 and 18:00 (or 6 PM) is 0.75

    So, you can just add them, as AlKey showed

    both give me this number 39941 0.469444444444444.
    That is excels way of trying to show the date and time in general format (or just text, if you concat them)
    1. Use code tags for VBA. [code] Your Code [/code] (or use the # button)
    2. If your question is resolved, mark it SOLVED using the thread tools
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    Regards
    Ford

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