Year

Year 2019 is 71.86% complete.
71.86838775625259%

Month

Month 2019-9 is 64.39% complete.
64.39871481925499%

Day

Day 2019-9-20 is 31.96% complete.
31.961069141935823%

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

For example