jonthornton/jquery-timepicker — pull request #61 by ghiculescu (2012-12-23 08:17:55+00:00)
Title: Show duration when a durationTime or minTime is provided (currently only works with minTime)

The documentation states "showDuration Shows the relative time for each item in the dropdown. minTime or durationTime must be set.", but durations were only rendering with a minTime.