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Calculate date based on number of weeks or months after start date

  1. #1
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    Calculate date based on number of weeks or months after start date

    Please see attached sample file.

    What is the formula to:
    1. Return the date of the last weekday of the work week based on weeks gone since start date.
    2. Return the date of the last weekday of the month based on months gone since start date.

    Thanks in advance.

    SampleDates.xlsx

  2. #2
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    Re: Calculate date based on number of weeks or months after start date

    Not sure how you're getting 27th by adding 2 weeks to 1st

    Weeks =D3-WEEKDAY(D3+1)+(D5*7)
    Months =EOMONTH(D3,0)

  3. #3
    Forum Moderator daddylonglegs's Avatar
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    Re: Calculate date based on number of weeks or months after start date

    Assuming the second one needs to return a weekday (Monday to Friday) try this

    =WORKDAY(EOMONTH(D3,D6-1)+1,-1)
    Audere est facere

  4. #4
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    Re: Calculate date based on number of weeks or months after start date

    Thanks... these worked perfectly:

    1. Return the date of the last weekday of the work week based on weeks gone since start date.
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    2. Return the date of the last weekday of the month based on months gone since start date.
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