I found this code on this site for a version of JIRA from 2015. This is code to place in the highlighted file to convert seconds for the time into days and hours, etc. The code is specific to version. We are on version 7.3/7.4. Can someone tell me if there is more updated code that what I have placed below which was for the 5.x versions.
Filename: WEB-INF/classes/templates/jira/issue/field/duration-columnview.vm
Script:
#if ($displayParams.excel_view && $duration)
#set ($seconds = $textutils.parseInt($duration))
#set ($minutes = $seconds / 60)
#if ($minutes >= 60)
#set ($hours = $minutes / 60)
#set ($remainder = $minutes % 60)
#if ($remainder > 0)
#set ($remainder = $remainder * 100)
#set ($remainder = $remainder / 60)
#end
#else
#set ($hours = 0)
#set ($remainder = $minutes * 100)
#set ($remainder = $remainder / 60)
#end
$textutils.htmlEncode("${hours}.${remainder}")
#else
$textutils.htmlEncode($duration)
#end