Christmastide In The Eastern Churches

In both the Eastern Rite Catholic Churches and the Orthodox Churches In Communion with Constantinople, the Julian Calendar is in effect, and so is Christmastide. As Julian and Gegorian Calendars are different by 13 Days, part of The Catholic Church and all of the Orthodox Churches, are in Christmastide. The Latin Rite is now in Ordinary Time:

A Blessed Christmastide to both the Eastern Rites in Union with Rome & to the Ancephelous Orthodox Churches in Union with Constantinople.

The Pez Report