The screen shot is not visible. Try pasting some sample data as well as the strptime() strings you've tried.
I don't see a Start Date. There is no screen shot or sample data.
Could you provide the other configuration that you're using here, is this a structured format file (PSV/CSV/TSV etc)?
Well, I did some testing with sample CSV data and looks like the time format is the issue. The TIME format should be exactly same as what's in the "Start Date" field. So try timestamp format as "