That really depends on where you live! Though you might be happy to celebrate it on December 31st, there are other places and other peoples who celebrate later in January, in the spring, in the fall, or even around Valentine's Day!
In The Very Christmassy Rattuses, The Little Rattuses™ looked at different ways of enjoying the winter solstice. Now they look at different dates that people choose to celebrate their new year!
It's never a wrong time to cheer love and friendship!