The date given on the web site is the date on which the homework is assigned, therefore, not the day on which it is due. Each assignment is due on the subsequent class day unless it is a test day. Then the assignment would be due at the next class meeting or unless otherwise indicated.
Assigning homework, reading assignments, or making announcements for reviewing material has never been easier. All it takes is one click and teachers can assign homework or make an announcement to their entire class. CK-12 and Google Classroom are streamlining the learning process so teachers can more time in the classroom with their students and less time fussing with technology.