Year

Year 2019 is 71.95% complete.
71.95710072950561%

Month

Month 2019-9 is 65.47% complete.
65.47805637602028%

Day

Day 2019-9-20 is 64.34% complete.
64.34167812808228%

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

For example