Seasonal changes to eBay estimated delivery dates
eBay will be amending they estimated delivery dates that they display to shoppers on the View Item page. They have published some information here.
As they note: “Over Christmas, we will automatically adjust estimated delivery times based on the information we have from postage providers. So rest assured, if you receive an order after the cut-off date for the selected postage service, the estimated delivery time shown to buyers will reflect this.”
And in addition to changing the dates, eBay will be displaying a message to shoppers informing them to be cognisant of the possible service delays that occur at this time of year. You can see it below in the screenshot.