I record my time pretty religiously. 5 hours seems to be a standard "working day" of actually solid in the flow (face buried in a screen) work, assuming I'm sat

I record my time pretty religiously. 5 hours seems to be a standard "working day" of actually solid in the flow (face buried in a screen) work, assuming I'm sat at a desk for 7/8. That said, if I'm rolling and happy it can be way more, if I'm tired/struggling to hit the flow/not creative - way less. I can get an awful lot done in a day (or few days) if I push, but doing that long term becomes counter productive. On a regular day, I'll also get a bunch of smaller 'work' done, but it's mostly the admin-y stuff. Sales, email, help, calls, networking. Sometimes that can be my whole day - I suppose it depends how important those things are at the time (sales!) as to how much they're considered 'work'. Edit: Just to add, decent headphones are a godsend.