Year

Year 2019 is 71.87% complete.
71.8763099415147%

Month

Month 2019-9 is 64.49% complete.
64.4951014407404%

Day

Day 2019-9-20 is 34.85% complete.
34.852700138863604%

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

For example