It is not really important, because Xmas does not celebrate a date, but an event. Most Christians are quite aware that Jesus was probably not born on that date, and that nobody really knows for sure when he was born. What most Christians celebrate is an event which took place some time in the year. It was the most important birth of human history. May your Xmas be one filled with every blessing!
Xmas Myth #9 - Wrong Date
Although early Christian scholars gave just about every month of the year as the month that Jesus was born, most today agree that Jesus was not born on December 25. Why was that date chosen? There are two possible answers. One is that December 25 was chosen as an evangelistic ploy to convert pagan tribes who already considered that date to be important. If so, it was a brilliant plan. Others say that it was chosen by early scholars who mistakenly believed that Jesus was born then.