Just listening to the radio and they said that the Jewish festival "Hannukah" starts today. Would JW's call it pagan because its celebrated on on 25th Dec. Is this not a reason for celebrating birth of Christ today. After all Jesus celebrated a festival around that time, called the " Feast of Dedication" (John 10:22) .
The annual feast celebrated eight days beginning in the 25th of Chislev (middle of our December), instituted by Judas Maccabaeus [164 BC] in memory of the cleansing of the temple from the pollution of Antiochus Epiphanes
Interestingly it wasn't a festival instituted by God, but by men. Yet it seems Jesus may have celebrated it.
The celebrating of it was not confined to Jerusalem, as that of the divine feasts was, but every one observed it in his own place, not as a holy time (it is only a divine institution that can sanctify a day), but as a good time.