I'm very curious how people manage to carve out this time?

I've never really had a problem finding the time. Like everything else, it's a matter of what tradeoffs you want to make. For instance, I also don't watch TV/Netflix/etc. -- I work on my hobby projects instead. A couple of hours working on something every day yields results far more quickly that you'd think.

But I'll admit, I apply time management lessons I learned from being a single parent. Doing that taught me how much stuff you can really cram into a day.