Buddha Jayanti will be observed on May 26. Buddhists and Hindus all over the world celebrate the birth of Gautama Buddha as Buddha Jayanti. Buddha was born as Siddhartha Gautama, a prince, on the Purnima Tithi, the full moon day in the 563 B.C. in Lumbini (a region in modern day Nepal). Hence, the day of his birth anniversary is also known as Buddha Purnima or Vaisakhi Buddha Purnima or Vesak.
Sri Lanka, Myanmar, Cambodia, Java, Indonesia, Tibet, Mongolia, commemorate the special day of Buddha Jayanti as ‘Vesak’ through an elaborate festival.
As the date of Buddha Jayanti is based on Asian lunisolar calendar, the exact date tends to differ every year. Though it usually falls on the Hindu month of Vaisakha on the full moon day, the date in the Western Gregorian calendar varies.