Year

Year 2019 is 95.4% complete.
95.40949417534215%

Month

Month 2019-12 is 45.95% complete.
45.95047746959868%

Day

Day 2019-12-15 is 24.46% complete.
24.46455287787648%

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

For example