Year

Year 2019 is 71.88% complete.
71.8826963615992%

Month

Month 2019-9 is 64.57% complete.
64.57280291261547%

Day

Day 2019-9-20 is 37.18% complete.
37.183770375772816%

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

For example