Year

Year 2020 is 25.1% complete.
25.107651575656583%

Month

Month 2020-4 is 2.98% complete.
2.980007352777171%

Day

Day 2020-4-1 is 89.4% complete.
89.40122082884147%

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

For example