“My mother and I are wondering if Jesus was born on December 25 or another date.”

Pinpointing the date of Jesus' birth seems an easy task; however, due to the complexity of history's various calendars and ways of calculating time, we cannot be sure of the date.

The two Gospels that detail the birth of Jesus do not give a date.
Early Christians observed an annual feast to remember Jesus' death and resurrec­tion, focusing on the paschal mystery rather than on his birth.

As Christianity grew and spread, however, Christians wanted to celebrate more events from Jesus' life.
The celebration on December 25 has more to do with expression of faith in Jesus than with establishing the exact date of his birth.

December 25 is listed as the date of Jesus' birth in a fourth-century calen­dar of martyrs, but how this date was chosen is unclear. Some scholars believe Christians in Rome chose December 25 to counteract the celebration of the pagan sun god  Mitra.

Another theory follows the influences of the seasons. Early Christians believed John the Baptist was conceived on the autumnal equinox and born at the summer solstice. In Luke's Gospel, Jesus' conception took place six month after John's. That timeline would place Jesus' birth at the winter solstice, December 25 on the Julian calendar.

A third theory says Jesus' birth would have occurred on the same date as his death, which we be­lieve to be in the spring at Passover.
Regardless of the exact date, we celebrate Jesus as the true Son who came to enlighten us and, by his death and resurrection, to give us life.