That was my impression as well.

I am impressed by your ability to enchain your entire algorithm. Would you or do you do this in a commercial application?
If so what would be the usecase for doing so? Isn't there a balance between readablity and compactness? Especially if others will have to debug your code in the future? Cheers!

I enjoyed this problem. I love working working with time values. I few iterations and I was able to solve this. I have to be honest though. I used Bard AI a few times just so I didn't have to scroll through MDN a bunch. I wonder if time to solve these problems has steadily improved on average since AI became prominent.

I attempted this using regex. It appears that my valid regex does not pass here. I tested my regex pattern and it works elsewhere. But, not here. Here is the pattern that causes the error: /[\s\p{P}]/gu.

Thanks for the feedback. I can see that people have been able to write this in just one or two lines. And, I will work on eliminating the redundency. Cheers.