The new deadline by which it will be possible to import CE marked products into the British market is 31 December 2022.
The British government has decided to extend for another year the current transitional period during which it is possible to import CE-marked goods and products (excluding medical devices) into the UK market. From 1 January 2023, all products and goods imported into this market must bear the new UKCA mark.
source: https://www.ukas.com/resources/latest-news/ce-mark-acceptance-extended-to-2023/