Its always 2 weeks at Christmas.
We used to finish the week before christmas and go back on the 2nd.
But for the last few years we have taught up to the Friday before Christmas eve. This year 22nd.ast year 23rd!
So we have inset on the 8th and go back the 9th.
My dc are grown and go back to work tomorrow, as does dh, so I'm going to relish the time to myself.