I’m most creative outside work hours, is that bad?

I find that, apart from the conventional working hours, I have and I get more bright ideas, more creative ideas at my own pace. I'm not saying that I don't get the same amount of creativity at the normal, conventional working hours, but when there's that flexibility for me to actually work, it gives me more room to expand, it gives more room to get ideas. There's some days when I'm playing video games or watching anime or doing unconventional things where I can pick, let's say it's a UI I need to fix and I'm looking for a colour palette that would accommodate a particular colour that's already been picked. Just me getting that from the leisure activity I'm doing, I pretty much just store that to my mind and quickly go and add that to my working hours.