The last domestic date for dispatch by Royal Mail is the following :-
U.K 21st December. Special delivery 23rd December (additional postal charge may apply)
Europe ranges from 11th to the 18th December.
Rest of the World the 9th December.
For more detailed information please see https://www.royalmail.com/christmas/last-posting-dates#lastpostingdates
There have already been difficulties with the Royal Mail in certain areas due to staffing shortages with regard to self isolating. This could either improve over time, or, get worse. Therefore you cannot accept the dates above as being sacrosanct.
DPD who are usually used for larger parcels please see https://www.dpd.co.uk/pdf/dpd-christmas-delivery-schedule-2020-v2.pdf
I have mentioned this in my newsletter earlier in November, but, for those of you who do not subscribe, can you please order King & Country
backorder items that you would like for Christmas this month, as I cannot guarantee that the December delivery will get to me in time to post out in time for the 21st.
Any specific questions please either e-mail me on email@example.com or ring me on 01622 850336.