The solution is to take this line and add it to your existing search:
| fieldformat YourFieldNameHere = replace(replace(replace(replace(tostring(1000 * YourFieldNameHere, "duration"), "\+", " days, "), "(\d+):(\d+:\d+)$", "\1 hours, \2"), "(\d+):(\d+)$", "\1 minutes, \2"), "$", " seconds")
HOWEVER, you have to replace YourFieldNameHere with the actual name of your field. That is all there is to it. It works. Be sure to come back and click Accept to close the question.
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