Year

Year 2019 is 71.87% complete.
71.87380959555807%

Month

Month 2019-9 is 64.46% complete.
64.4646805541629%

Day

Day 2019-9-20 is 33.94% complete.
33.94006333070604%

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

For example