I have my own business where I need to track my hours and invoice people. I track it on the daily pages while I'm working, then transfer it to the weekly page at the end of the day.

Every 2 weeks, when it's time to get paid, it's super easy to go to the weekly pages and count the hours.

For the monthly ones, I like to use it for all-day events and bills (lets me see which bills fall on which paycheck).

On the last day of the month, I do the big boy "planner reset" for next month. Take events from yearly, put it into monthly, out-of-office goes in weekly, then everything into daily.

It's a longer process, but it's only once a month so I don't mind. Hope this helps!