My weeks used to be 50 to 90 hours for 10+ years; so you're looking at 10 to 40 hours of extra curricular activities per week. My weeks are 40 now, unless someone is willing to pay me more to work additional; and that does happen too frequently. Holidays last for at least 2 weeks twice a year. Life is too short to chase every technology. Life is too short to spend most of it in front of a computer or even TV monitor.
There was a point where I couldn't wait for the workday to finish, so I could spend every other waking moment (evenings, weekends) working on my own little pet projects.
I'm now 44 and it's been at least 2 years I've invested any "serious" amount of time into those same projects.
I still churn out tiny utilities for my own purposes when I see a specific need, but I have some larger-scale projects I used to love to work on that I now simply can no longer bring myself to even maintain.
But in fact, most of my side projects are attempts to be able to retire in a few years. Since I pissed away every penny I earned in my prime, I now have a few good years left to build up some form of retirement. So, I'll just keep trying stuff until something pays off or I die, whichever comes first.
I do a lot of R&D type work before a project, such as when I order an ultrasonic sensor. I'll spend several hours getting it to work then stow it away for future reference.
When I actually have a project I generally spend a lot of time on it until it is done. A lot of time depends on the size and complexity of the project.
New version: WinHeist Version 2.2.2 Beta I told my psychiatrist that I was hearing voices in my head. He said you don't have a psychiatrist!
I answered it as per week. If my wife didn't keep interrupting me, it would be a lot higher. Now that I'm retired, she seems to think I'm only here to be at her beck and call. Still, I assume that one must pay something to be so well fed and watered.
Because of the 60+ hour option I interpreted it to mean a month or year. I would think if you have a full-time job you are doing at least 40 hours there.
40 + 60 = 100
Since there are only 168 hours in a week that would leave 68 hours for sleeping, eating and socializing with family/friends. I am sure that you could scrap the whole socializing with friends/family and sleep or eat less but then I would assume that means it is no longer a hobby and instead an obsession.