Year

Year 2020 is 25.09% complete.
25.092495900503636%

Month

Month 2020-4 is 2.79% complete.
2.7951080504237202%

Day

Day 2020-4-1 is 83.85% complete.
83.85417969641121%

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

For example