Weekends not showing in Calender View


ERPNext have default weekends in calender view (Sat/Sun). I want to set it in my company default weekend(Fri/Sat). I created holiday and set it in the company setup. BUt calender still showing sun/sat weekends. How can I change it? can anyone help me with this please?

I want to show it from Project’s tasks Gantt chart and Calender view.