Dates may change by a day or so each year so that they fall on weekdays. The November dates will always be a week before Black Friday, the Friday after US Thanksgiving holiday (which changes from year to year).
Want to add this stuff to your own g-calendar really easily? See that little blue plus sign next to “Google Calendar” at the bottom right? Click on that and you can RC General events in your own g-calendar. Notice how this graphic shows Pacific Time Zone? Please note that yours will adjust to YOUR timezone.