In the ChiPlayer website, hover over your video and click Stats:
Or if you are playing your video, you can access the stats from the top bar:
You’ll then get a graph, you can use the drop down menu to select a time frame:
If you scroll down you’ll then get a lost of who has viewed the video:
Note: the stats only records viewed minutes if the viewer has the video in an active window, so if they have played it but are then doing something else in another window, they may have listened or watched it but it wont log those minutes, it usually shows they have watched 0.2 minutes when that happens.