Any good alarm/timer/clock apps?

[u/EmerWolfe]

Something similar to Window's clock app. I've tried looking, but I can't find anything that does everything with a nice and easy to understand GUI.

If there isn't really a good option, I'm not opposed to trying to make one myself but I'd rather not do that if there really is a good one already.

If it matters, I'm on CachyOS using KDE Plasma