Udaya

Unduvap Poya Observance The full moon of the Sinhala month of Unduvap, one of the twelve Poya days the island keeps.

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The name

The same day, written in each of the six scripts this app keeps

English
Unduvap Poya
සිංහල
උඳුවප් පොහොය

Only the names actually in use are listed. A blank script is not an omission: the day may simply not be kept there, or be kept under a different festival's name.

UTC+5:30

The date of a festival depends on the place: a tithi that ends at dusk in Chennai can still be running at dusk a thousand kilometres west, which moves the day. Sunrise and sunset here are computed for the place above.

When it falls next

Looking for the calendar this day belongs to

This day does not fall again in the next three years at this place. A few days are tied to the solar month rather than to the civil year, so a year can hold two of them or none.

What the day is

The full moon of the Sinhala month of Unduvap, one of the twelve Poya days the island keeps. Every Poya is a day of sil: white is worn to the temple, the eight precepts are taken before a monk, and the day is passed in listening, reciting and meditating rather than in work. This one is kept for the coming of Sanghamitta Theri with a sapling of the Bodhi tree, planted at Anuradhapura, where it stands to this day.

Deity
Buddha
Kind
Observance Days marked, watched or begun, without a fast or a feast of their own.

The hour

The rule in words

The day whose sunset the full-moon tithi covers, the evening the moon is seen full, and the second of the two when it covers two sunsets. That reproduces every Poya the government gazetted for 2024, 2025 and 2026. The traditional almanac counts the lunar days from a calculated new moon and can still name another day, so the temple notice is worth reading.

The fast

Those who take sil at the temple keep the eight precepts for the day and the night: one meal before midday, nothing solid after it, and no music, ornament or high seat. Others keep the day meatless, and the sale of meat and liquor is closed across the island.

Where the regions differ

Sri Lanka keeps all twelve full moons as public holidays, which no other country does, and an intercalated month adds an Adhi Poya of the same name and gives the year thirteen. The Sinhala month names run one behind the Sanskrit ones, which is why the Kandy Esala Perahera ends on the Nikini Poya.

Fixing a day for it

The muhurtham rules that go with this festival

A temple visit, or the first darshan at a new temple. No weekday is ruled out: Tuesday belongs to Murugan and the Amman, Saturday to Perumal and Sani, so the day usually follows the deity rather than the almanac. Ashtami and Chaturdasi are the two tithis held back for darshan, with the standing exceptions of Sivaratri on Krishna Chaturdasi and Kala Bhairava Ashtami, which are kept on those very days. Rahu kaal, Yamaganda and Gulika kaal are not scored here; the panchangam page prints them for the day you pick, and most families simply wait them out.

Find a day for temple visit →

Every date here is computed from the Sun and Moon for the place entered, by the rule printed beside it. A printed panchangam can differ by a day where an almanac reads a tithi at a different instant, and a family's own custom always comes first. Where the practice genuinely varies, the text says so rather than choosing for you.

Positions are accurate to a few arc-minutes, enough for signs, stars and padas except within about half a degree of a boundary, which the pages point out. Nothing you enter leaves the browser.

How the calculations work