Thanks for staying with me on this. I renamed the library folder to Time, and restarted the IDE, but it made no difference. I'm running the latest IDE, Version 1.82.
I take it that you are able to compile the code using the three specified libraries. I see that "tmElements_t" is used inside the timelib code, but I'm not sure what this means in terms of it not being understood in the angularclock code.
Dick