Year

Year 2019 is 71.87% complete.
71.87375210721883%

Month

Month 2019-9 is 64.46% complete.
64.46398111245458%

Day

Day 2019-9-20 is 33.91% complete.
33.91907984468746%

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

For example