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Thread: DateDiff Problem

  1. Aug 6th, 2003, 02:37 PM #1
    nievesj
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    DateDiff Problem

    Hi.

    I want to determine how long a month is, but when I do this

    Code:
    strLeft = 8/31/2003
varMonthLength = DateDiff("d", CDate(strLeft), DateAdd("m", 1, CDate(strLeft)))
    I get 30 instead of 31, what can cause that to happen?, and how I can get the accurate number?

    Thanks in advance.
    NievesJ
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  2. Aug 6th, 2003, 02:45 PM #2
    nievesj
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    Um, hehehe, my mistake, I know what is happening
    NievesJ
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  3. Aug 6th, 2003, 11:32 PM #3
    moinkhan
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    Tell us .. what is happening!!!
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  4. Aug 7th, 2003, 12:27 AM #4
    dterza01
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    Try this:

    VB Code:
    1. strLeft = "8/31/2003"

    2. varMonthLength  = Day(DateSerial(Year(CDate(strLeft)), Month(CDate(strLeft)) + 1, 0))

    Diego.
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  6. Aug 7th, 2003, 01:38 AM #5
    Lightning
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    It is just because september (month number 9) has only 30 days. If you add 1 month to 31-8-2003 you get 30-9-2003
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