Year

Year 2019 is 64.3% complete.
64.30915877514431%

Month

Month 2019-8 is 73.31% complete.
73.31751797390622%

Day

Day 2019-8-23 is 72.84% complete.
72.84305169958515%

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

For example