The schedule of Divine Liturgies for the Nativity is as follows:
Sunday, December 24th: Orthros at 9am, Liturgy at 10am.
Sunday Evening: Orthros at 5:30pm, Liturgy at 6:30pm.
Monday, December 25th: Orthros at 9am, Liturgy at 10am.
Please remember that you are only supposed to receive Holy Communion once per day, and also that the liturgical day begins the evening before. For example, if you receive communion Sunday morning, you shouldn't receive it Sunday evening, but you could receive on Monday morning. If you receive on Sunday evening however, you should not receive on Monday morning.
Feel free to attend as many of these services as you would like, and we wish you a Merry Christmas, a Blessed Nativity, and Kαλά Χριστούγεννα!