Year

Year 2019 is 79.5% complete.
79.50198552567814%

Month

Month 2019-10 is 55.42% complete.
55.42659478136005%

Day

Day 2019-10-18 is 18.22% complete.
18.224007636662233%

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

For example