In Control Center, you can change which holiday is in your day-of-year routing plan. For example, you can redirect traffic on Christmas Day instead of New Year's Day.
To change a day-of-year routing plan:
Control Center displays a list of all services assigned to the accounts under your enterprise ID. If you have more than ten services, you can view the rest of your services by clicking one of the blue linked Show numbers at the top of the list or you can click the blue down arrow at the bottom of the list to add ten services at a time to the view.