Year

Year 2019 is 64.3% complete.
64.30925484403737%

Month

Month 2019-8 is 73.31% complete.
73.31864910803345%

Day

Day 2019-8-23 is 72.87% complete.
72.87811725028878%

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

For example