Year

Year 2019 is 64.31% complete.
64.31566764207813%

Month

Month 2019-8 is 73.39% complete.
73.3941546591483%

Day

Day 2019-8-23 is 75.21% complete.
75.21881555235758%

This site Dividing the year, month, day into 100 pieces and show the progress bar for you.

For example