The image shows the calender below where the weekday names are in filled circles (blue for Sat and Sun and yellow for the others). The month day numbers are all inside an unfilled rectangle with a black border.

Mon Tue Wed Thu Fri Sat Sun
01 02
03 04 05 06 07 08 09
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31