[chmod775]

I'm somewhat similar, except that I use those breaks to do private things, like spending time with others, getting a workout in, doing chores, etc.

As a result I have much less useless idle time compared to working in an office and my days feel like there's so much more time in them. When it's 7pm for me there's nothing important left to do, whereas with an office job I would probably have to cram a dozen things into the next three hours before 10pm.

So yeah I don't mind "ending late".