My errors when writing the code were to miss out a zero, hence missing out the central circle, and then adding + instead of * for minutes and seconds, so that the minute and second hands were wrong. When I spotted the typos I corrected them. Now it works.
I have 45 minutes of course left before I finish this course: Front End Web Development Ultimate Course 2021. Some parts could have been shortened. I find that it is a good course to take you through some of the parts that other courses skip on. I like that it takes time to explore bootstrap in full, jquery, SVG to some degree, and canvas. It showed me tools I either struggled to understand, or others that I didn't know existed. It allowed me to fill in gaps in knowledge that should make follow-up courses more interesting.
Tomorrow I have to experiment with the game that is included in the course. When I finish this course, I can move on with the next.