Year

Year 2019 is 71.88% complete.
71.88145892004225%

Month

Month 2019-9 is 64.55% complete.
64.55774736834144%

Day

Day 2019-9-20 is 36.73% complete.
36.73209899412741%

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

For example