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Imagination_Steve's avatar
Imagination_Steve
Occasional Reader
Dec 20, 2024

Backdating tasks excluding weekends.

I need to figure out how to backdate multiple tasks in excel, by inputting a final date. This also needs to exclude weekends? Please may someone help and point me in the right direction. 

 

 

This is what I have got setup so far.

 

 

  • Let's say the end date (25 December 2024) is in C12.

    I'll assume that you have created a list of public holidays and named it Holidays.

    In C11:

    =WORKDAY.INTL($C$12, -B11, , Holidays)

    Fill or copy upwards.

  • This lacks the holidays and internationalisation of weekends that HansVogelaar catered for but it is structured to return results as a dynamic array.

    = WORKDAY(targetDate, -daysRequired)

    [the main difference is that I always use array formulas and reference all data by name] 

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