I can stay up working as late as I'd like - when I'm done with my deep focus is entirely up to me. When I get into the office early the end of my deep focus is

I can stay up working as late as I'd like - when I'm done with my deep focus is entirely up to me. When I get into the office early the end of my deep focus is entirely out of my control. It ends when my coworkers decide to come in and start bothering me.