Christmas.. the cultural celebration among billions of people around the world. My favourite time of year!
Christmas is great, everyone is in good spirits.
Christmas Day is a public holiday in many of the world's nations, is it in yours? 
Yes, I would say it is the biggest holiday of the year.
Christmas traditions
Christmas traditions vary from country to country. Christmas celebrations for many nations include the installing and lighting of Christmas trees, the hanging of Advent wreaths, Christmas stockings, candy canes, setting out cookies and milk, and the creation of Nativity scenes depicting the birth of Jesus Christ. Christmas carols may be sung and stories told about such figures as the Baby Jesus, St Nicholas, Santa Claus, Father Christmas, Christkind or Grandfather Frost. The sending and exchange of Christmas card greetings, observance of fasting and special
Christmas
Christmas is an annual festival commemorating the birth of Jesus Christ, observed on December 25 as a religious and cultural celebration among billions of people around the world. A feast central to the Christian liturgical year, it is preceded by the season of Advent or the Nativity Fast and initiates the season of Christmastide, which historically in the West lasts twelve days and culminates on Twelfth Night; in some traditions, Christmastide includes an octave. Christmas Day is a public holiday in many of the world's nations, is celebrated religiously