I initially tried to create this as a Calculated Column. But, of course, they don't like [Today] as a variable. I'm trying to populate a column with a number that is a calculation based upon a date someone enters into another column. So the calculation would be:

[Today] - [PastDate]

With the impossibility of creating this in a Calc Column, I'm now looking at a workflow for this (using Nintex, of course). How would I go about doing this calculation in a workflow (since that seems to be my only option) ?

2 Answers 2


Based on many references on this in Stack Exchange, you can use Today() instead of [Today] like:

  • Thank you, Matiur .
    – DanJ
    Jan 29, 2020 at 16:28

In addition to Martiur's response, to calculate the number of days you can use the DateDif function:

=DATEDIF(Start_date,End_date,"D") -> "D" for number of days.


  1. Create a calculated column of type number
  2. Formula


Microsoft Article

  • That's good to know. Thank you.
    – DanJ
    Jan 29, 2020 at 16:28

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