Year

Year 2019 is 95.4% complete.
95.40951346362279%

Month

Month 2019-12 is 45.95% complete.
45.950704573625735%

Day

Day 2019-12-15 is 24.47% complete.
24.471593181571386%

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

For example