Would you have done your job if you weren't getting paid?
If not, then it's nothing like a hobby, I mean the difference between a hobby and a job is that a hobby is job as something someone has to pay you for you to do.
And "everything has a time and a place" is just normalcy bias, it really means nothing.
p.s.
Remember how you felt going back to the office after New Year's?
Has a hobby ever made you feel like that?
I don't really remember feeling anything special when going to work after Near Year's. Actually this year I was really happy to go to work because I messed up my sleeping schedule on New Year's and I knew having to go to work would fix it. Maybe back years ago when I worked as a storage house worker, though I did really enjoy that work too.
Here's a question for you. Do you not have anything yourself that you really like doing, but that you probably wouldn't do if you didn't have some specific reason to do apart from simply loving to do it, whether the reason is in your mind or if it's some kind of external pressure?
See, I don't think your way of thinking really proves anything. People can love to do things even if they wouldn't do them if they didn't have to. For example I love working out but damn it's hard at times to make myself do it. Actually I probably wouldn't do it if I didn't feel the need to keep myself in good shape, no matter how great I feel when working out and after the workout. Not because I secretly hate it but because deep down I'm actually a lazy bum and it's hard to motivate myself to start doing anything even when I know I'll like it.
A little bit of pressure isn't a bad thing and I think the vast majority of people actually need it in their lives. Without any pressure at all, both external and internal, some people would actually do really interesting things I'm sure, but a lot of people would probably just watch TV all day and eat unhealthy things. That's nice and all but it's not good to do all the time. When you have some pressure, whether it's something like being ashamed of getting a bit of fat or knowing you need to be in work on time, it drives you to do things and people often like those things even if they're not always easy to start doing.
Regarding the "everything has a time and a place", it quite literally means what it says. I'm not sad when the weekend comes because I've done plenty of work for the week and now it's weekend time. Then when the weekend is over, it's work time and I'm not sad about that. It's how my life is structured and structure and routine is pretty important for me.
Anyway, I'm a software developer and I also code in my free time, so a lot of the time I already do pretty much do the same thing as I do in my work.