Any suggestion on charting plugin for time stacked bar chart?

Question

I\'ve been spending quite some time looking for a charting plugin for time tracking, ie. Engine Time Tracking chart as following image:

Answer 1

You can try to use column range chart or stacked with datetime type of axis.

http://www.highcharts.com/demo/columnrange

http://api.highcharts.com/highcharts#xAxis.type

Answer 2

You should be able to do this in Flotr (which has a better license than highcharts) by just throwing what they showed in this blog post on its side.