Yes, pretty much the same as everyone else....aimed for around 3 hours, very rarely managed it. Generally done about 2hrs-completed in 15months.
that was working 6 days and hours building in the rest.
As others have already said, work to your own schedule and remember to take as much time off/away as you need...there's no point in having no quality of life you'll just begin to hate it and not do nearly as well.
Best of luck
c99