Year

Year 2019 is 79.5% complete.
79.50360709392118%

Month

Month 2019-10 is 55.44% complete.
55.44568744622862%

Day

Day 2019-10-18 is 18.81% complete.
18.81588687706212%

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

For example