How do you block your time?

I work a remote full time job, but also have freelance clients and going to be starting my own agency soon.

How do you create a schedule for yourself?

Is it basically 2 hour time blocks alternating between the job and side hustle? Or is it by day?(for example- mondays for side hustle, tues for job etc).

I want to hear from other people working remotely how they create a schedule for themselvess