Public holidays in Sri Lanka

Christmas is an annual festival commemorating the birth of Jesus Christ, observed primarily on December 25 as a religious and cultural celebration among billions of people around the world. A liturgical feast central to Christianity, Christmas preparation begins on the First Sunday of Advent and it is followed by Christmastide, which historically in the West lasts twelve days and culminates on Twelfth Night. Christmas Day is a public holiday in many countries, is observed religiously by a majority of Christians, as well as celebrated culturally by many non-Christians, and forms an integral part of the annual holiday season.

Maha Shivaratri is a Hindu festival celebrated annually in honour of the deity Shiva, between February and March. According to the Hindu calendar, the festival is observed on the fourteenth day of the first half (night start with darkness - waning) of the lunar month of Phalguna. The festival commemorates the wedding of Shiva and Parvati, and the occasion that Shiva performs his divine dance, called the Tandava.

May Day is a European festival of ancient origins marking the beginning of summer, usually celebrated on 1 May, around halfway between the Northern Hemisphere's Spring equinox and June solstice. Festivities may also be held the night before, known as May Eve. Traditions often include gathering wildflowers and green branches ("bringing in the May"), weaving floral garlands, crowning a May Queen (sometimes with a male companion), and setting up a Maypole, May Tree or May Bush, around which people dance and sing. Bonfires are also a major part of the festival in some regions. Regional varieties and related traditions include Walpurgis Night in central and northern Europe, the Gaelic festival Beltane, the Welsh festival Calan Mai, and May devotions to the Blessed Virgin Mary. It has also been associated with the ancient Roman festival Floralia.

Eid al-Adha (Arabic: عيد الأضحى, ʿĪd al-ʾAḍḥā, 'Feast of Sacrifice') is the second of the two main festivals in Islam alongside Eid al-Fitr. It falls on the 10th of Dhu al-Hijja, the twelfth and final month of the Islamic calendar. Celebrations and observances are generally carried forward to the three following days, known as the Tashreeq days.

Diwali, also called Deepavali (IAST: Dīpāvalī) or Deepawali (IAST: Dīpāwalī), is the Hindu festival of lights, with variations celebrated in other Indian religions such as Jainism and Sikhism. It symbolises the spiritual victory of Dharma over Adharma, light over darkness, good over evil, and knowledge over ignorance. Diwali is celebrated during the Hindu lunisolar months of Ashvin (according to the amanta tradition) and Kārtika—between around mid-September and mid-November. The celebrations generally last five or six days.

Eid al-Fitr (EED əl FIT-ər, -⁠rə; Arabic: عيد الفطر, ʿĪd al-Fiṭr) is the earlier of the two official holidays celebrated within Islam (the other being Eid al-Adha). Eid al-Fitr is celebrated by Muslims worldwide because it marks the end of the month-long dawn-to-dusk fasting of Ramadan. Eid al-Fitr falls on the first day of Shawwal in the Islamic calendar; this does not always fall on the same Gregorian day, as the start of any lunar Hijri month varies based on when the new moon is sighted by local religious authorities. The holiday is known under various other names in different languages and countries around the world. The day is also known as the First Eid or as the Lesser Eid (Arabic: العيد الصغير, al-ʿĪd al-Ṣaghīr) by some Muslim communities.

Poson, also known as Poson Poya, is an annual festival held by Sri Lankan Buddhists celebrating the arrival of Buddhism in Sri Lanka in the 3rd century BC. The festival is the most important Poya (full moon) holiday of the year and the second most important Buddhist holiday of the year, being surpassed in importance by Vesak. Poson is celebrated throughout the island, with the most important ceremonies of the festival being held in Anuradhapura and Mihintale. The festival is held in early June, coinciding with the June full moon.

National Day, also known as Independence Day, is a Sri Lankan national holiday celebrated annually on 4 February to commemorate the country’s political independence from British rule in 1948. It is celebrated all over the country through a flag-hoisting ceremony, dances, parades, and performances. Usually, the main celebration takes place in Colombo, where the President of Sri Lanka raises the national flag and delivers a nationally televised speech.

Māgha Pūjā (also written as Makha Bucha Day, Meak Bochea) is a Buddhist festival celebrated on the full moon day of the third lunar month in Cambodia, Laos, Thailand, Sri Lanka and on the full moon day of Tabaung in Myanmar. It is the second most important Buddhist festival after Vesak; it celebrates a gathering that was held between the Buddha and 1,250 of his first disciples, which, according to tradition, preceded the custom of periodic recitation of discipline by monks. On the day, Buddhists celebrate the creation of an ideal and exemplary community, which is why it is sometimes called Saṅgha Day, the Saṅgha referring to the Buddhist community, and for some Buddhist schools this is specifically the monastic community. In Thailand, the Pāli term Māgha-pūraṇamī is also used for the celebration, meaning 'to honor on the full moon of the third lunar month'. Finally, some authors referred to the day as the Buddhist All Saints Day.

The Royal Ploughing Ceremony (Khmer: ព្រះរាជពិធីបុណ្យច្រត់ព្រះនង្គ័ល, Preăh Réach Pĭthi Chrát Preăh Neăngkoăl; Thai: พระราชพิธีจรดพระนังคัลแรกนาขวัญ, Phra Ratcha Phithi Charot Phra Nangkhan Raek Na Khwan; Sinhala: වප් මඟුල්, Vap Magula), also known as The Ploughing Festival, is an ancient royal rite held in many Asian countries to mark the traditional beginning of the rice growing season. The royal ploughing ceremony, called Lehtun Mingala (လယ်ထွန်မင်္ဂလာ) or Mingala Ledaw (မင်္ဂလာလယ်တော်), was also practiced in pre-colonial Burma until 1885, when the monarchy was abolished.