Update a variable with the current date and time

This is a great thread, just what I need but I cannot get the DateTime_Test.story file from David above to work. The date works, but not the time. See attachment. I didn't make any changes except downloading the .story file and upgrading it to SL 360 and publishing and uploading to Canvas LMS. Any suggestions? I really need a date and time stamped on the results slide, right down to the seconds like this example shows. I'm not super good at JavaScript, but I do understand the need to create variables and the basics of how this should work. For instance, I have a variable that calls up the user's name from Canvas, and that works . . . . I've spent a lot more time than I expected looking at other threads, and help would be appreciated!