Blocking Public Holidays and Weekends in Calendar

Tags: #<Tag:0x00007f07712b1338> #<Tag:0x00007f07712b11f8> #<Tag:0x00007f07712b10b8> #<Tag:0x00007f07712b0f78>

I am looking for ways to register and block holidays and weekends in some calendars in HTML form entry - any ideas on how this can be configured on a regular basis (at least per year)