Which 12 days?

[Barbarara]

If you use any of the 12 day advent calendars, or otherwise celebrate 12 days of Christmas, which 12 days are they?

Starting with Solstice (21st) to New Years Day

Christmas Eve to 4th Jan

12 days before Christmas ending on Christmas Eve? Christmas Day?

Or....?

Start on 26 end on 6 th Jan ?
That’s 12th night

It starts on 26 Dec and finishes on 6 Dec with epiphany