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Hi,<br />
<br />
Will you please provide a sample data where RTD is recorded? or Please provide Column name? also from to which row?<br />
<br />
Anyway, I have attached a sample workbook and tweaked a bit. Change the details and see, if it helps you.<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/02_w07/1145767/Recording-events-triggered-by-RTD-d.xlsm" target="_blank" class="file-inline" title="Recording RTD (19 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>Recording-events-triggered-by-RTD-d.xlsm</a>
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Hi,

Will you please provide a sample data where RTD is recorded? or Please provide Column name? also from to which row?

Anyway, I have attached a sample workbook and tweaked a bit. Change the details and see, if it helps you.
Recording-events-triggered-by-RTD-d.xlsm [https://filedb.experts-exchange.com/incoming/2017/02_w07/1145767/Recording-events-triggered-by-RTD-d.xlsm]

Recording-events-triggered-by-RTD-d.xlsm

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I have a cell on a sheet with a formula that displays a time, and through an RTD mechanism in the background, it updates that time.<br />
<br />
I need a way to get the difference in time between each update, and record how many times that difference went over a certain threshold, say 5 minutes.
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I have a cell on a sheet with a formula that displays a time, and through an RTD mechanism in the background, it updates that time.

I need a way to get the difference in time between each update, and record how many times that difference went over a certain threshold, say 5 minutes.

Excel formula or function to count time differences

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.

Microsoft Excel

Visual Basic for Applications (VBA) enables building user-defined functions (UDFs), automating processes and accessing Windows API and other low-level functionality through dynamic-link libraries (DLLs). VBA is closely related to Visual Basic and uses the Visual Basic Runtime Library, but it can normally only run code within a host application rather than as a standalone program. It can, however, be used to control one application from another via OLE Automation. VBA is built into most Microsoft Office applications.