Why ask
Technically any time wasted is bittul Torah if you are a man. However most people today are challenged in the area of using time wisely. I will tell you that when you are learning or davening be careful to maximize that time. However a person is allowed and must have time to recharge and relax. You aren’t a machine. If you truly feel that you waste hours a day then you have a problem but if you truly need to listen to music for an hour a day to feel healthy and sane it’s probably a mitzvah to do so. Hashem doesn’t want depressed Jews.
Kul tuv