Buddhist new year

The buddhist new year is celebrated at different dates in different countries and in different traditions.

In Mahayana countries new year is celebrated on the first full moon day of January.

Chinese, Koreans and Vietnamese buddhists celebrate according to the lunar calendar, so late January or early February.
The Tibetans usually celebrate about one month later.

In Theravadin countries, Thailand, Burma, Sri Lanka, Cambodia and Lao, the new year is celebrated for three days from the first full moon day in April.

Buddhists tend to adjust themselves to the people around them. So don't be surprised when they celebrate new year with you too.