| Antarctica Day | |
|---|---|
 Emblem of the Antarctic Treaty | |
| Observed by | Personnel at research stations in Antarctica |
| Type | Default |
| Significance | The anniversary of the signing of the Antarctic Treaty in 1959 |
| Celebrations | Public talks, educational activities, media consumption, flag flying |
| Date | December 1 |
| Frequency | Annual |
| Related to | Midwinter Day |
Antarctica Day is an international holiday recognizing the anniversary of the signing of the Antarctic Treaty in 1959. It is celebrated on December 1 each year. Along with Midwinter Day, it is one of Antarctica's two principal holidays.