Year

Year 2019 is 71.86% complete.
71.86561429166747%

Month

Month 2019-9 is 64.36% complete.
64.36497098818745%

Day

Day 2019-9-20 is 30.94% complete.
30.948742883724396%

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

For example