A year is how long it takes the Earth to circle the Sun.
One year is ...
|... from one Birthday to the next Birthday ...|
|... or from one Christmas to the next ...|
... or from ... well, you get the idea!
Each Month in the year has a special name, as show on the left
The first day of the year is 1st January, and the last day is 31st December.
Try the 12 Month Calendar to see every day of the year.