when does christmas start

Christmas is a Christian holiday that is celebrated on December 25th. It is a time of year when people come together to celebrate the birth of Jesus Christ and to give gifts and share love and kindness with each other. It is also a time when many families and friends gather for a traditional Christmas dinner and exchange presents. So, in essence, Christmas starts with the birth of Jesus Christ and continues with the celebration of that birth, as well as the traditions and customs that have grown up around it over the centuries.