Prepare graph based on data provided

Hi, I want a graph prepared in this format (refer to [login to view URL]). I want the CAS to be on the same line for all occurrences specific to that CAS (e.g.: CAS 2 occurrences should appear on a straight line.) To summarise; 1. X axis of the graph should indicate the time. 2. Y axis of the graph should indicate the CAS. There are 8 CAS that should be populated only. Each CAS should be colored differently 3. Each CAS may have multiple occurrences of downtime. Downtime is the duration taken from start to end time. The duration should be indicated in the bar as how its displayed in the picture. 4. I need to graph to be generated in the format specified above (one for 18 Apr and the other one for 21 Apr). Raw data attached in the excel file