calculations

This is a fairly simple solution that takes a date column, compares it to another date and gives you an answer in years (or days, or whatever you want). You’ll need to already have date columns to work with, and if comparing the date to today (years of age, membership, service, etc.) you’ll need a today column (hidden from the view above). This previous post will help you rig a “today” column that is always accurate without needing to update list items manually. Of course all of the following solutions work for any two dates (i.e. day span of vacation request), I’m just sharing specific examples that would involve “Today”.

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You may, at some point, find yourself working with calculations among dates, including “today’s date” which conceptually seems simple but requires a bit of work to function correctly. You may have even created a “today” column that defaults to “current date” or attempted a calculated column only to find that the date will not automatically update each day or that calculated columns cannot show dynamic data like that. Fret no more.

Today columns are essential for use in calculated columns that tell you things like “days until event”, “days without incident” or “years of service” without needing to click any buttons or take any additional steps. Your list’s calculated columns using your new Today column will always accurately reflect calculations using the current date. We’re going to create our solution via SharePoint designer workflow and a new Today column.