Last day for christmas post royal mail

According to the Royal Mail's website, the last recommended posting dates for Christmas 2022 are:

Please note that these dates are subject to change, and it's always best to check with the Royal Mail website or your local post office for the most up-to-date information.

Additionally, it's worth noting that the Royal Mail recommends sending gifts and cards to destinations outside the UK at least 2-3 weeks before Christmas to ensure they arrive on time.