Year

Year 2020 is 4.75% complete.
4.7515799894495485%

Month

Month 2020-1 is 56.09% complete.
56.099318401324595%

Day

Day 2020-1-18 is 39.07% complete.
39.07867344285696%

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

For example