https://docs.google.com/spreadsheets/d/10qyjgjVFbRuZuiv01Cl9H-F61m7z1mmia4cHUgxVlPQ/edit?usp=sharing

↑ you are allowed to edit the time cells for the first two pages in the spreadsheet, but if you want a spreadsheet for yourself then just create a copy of the spreadsheet and use the two empty pages