What you need to check now is your Christmas trading hours this year. Many of you will need to change your regular Christmas business hours this year. We can see that this will be different everywhere as each of the states governs opening hours. Also based on current trends it may also depend on the category of your business and where it is located.
Since the public is confused too, I suggest that you make your hours clear on the front of the shop and update it as time goes on. So something like this above is ideal as well as that consider adding it to the receipt your opening hours.