Festival dates · 2027
Ashadha Shukla Purnima. The date in 21 cities, computed for local sunrise, with the tithi times.
Every calendar city keeps it on the same day this year.
| City | Date | Tithi (local time) | Kathmandu date |
|---|---|---|---|
| Australia and New Zealand | |||
| Sydney | Sunday 18 July 2027 | Sat, 17 July, 11:20 pm → Mon, 19 July, 1:46 am | same day |
| Melbourne | Sunday 18 July 2027 | Sat, 17 July, 11:20 pm → Mon, 19 July, 1:46 am | same day |
| Brisbane | Sunday 18 July 2027 | Sat, 17 July, 11:20 pm → Mon, 19 July, 1:46 am | same day |
| Perth | Sunday 18 July 2027 | Sat, 17 July, 9:20 pm → Sun, 18 July, 11:46 pm | same day |
| Adelaide | Sunday 18 July 2027 | Sat, 17 July, 10:50 pm → Mon, 19 July, 1:16 am | same day |
| Canberra | Sunday 18 July 2027 | Sat, 17 July, 11:20 pm → Mon, 19 July, 1:46 am | same day |
| Hobart | Sunday 18 July 2027 | Sat, 17 July, 11:20 pm → Mon, 19 July, 1:46 am | same day |
| Darwin | Sunday 18 July 2027 | Sat, 17 July, 10:50 pm → Mon, 19 July, 1:16 am | same day |
| Auckland | Sunday 18 July 2027 | Sun, 18 July, 1:20 am → Mon, 19 July, 3:46 am | same day |
| Nepal | |||
| Kathmandu | Sunday 18 July 2027 | Sat, 17 July, 7:05 pm → Sun, 18 July, 9:31 pm | — |
| United States | |||
| New York | Sunday 18 July 2027 | Sat, 17 July, 9:20 am → Sun, 18 July, 11:46 am | same day |
| Dallas–Fort Worth | Sunday 18 July 2027 | Sat, 17 July, 8:20 am → Sun, 18 July, 10:46 am | same day |
| Houston | Sunday 18 July 2027 | Sat, 17 July, 8:20 am → Sun, 18 July, 10:46 am | same day |
| Chicago | Sunday 18 July 2027 | Sat, 17 July, 8:20 am → Sun, 18 July, 10:46 am | same day |
| Washington DC | Sunday 18 July 2027 | Sat, 17 July, 9:20 am → Sun, 18 July, 11:46 am | same day |
| Boston | Sunday 18 July 2027 | Sat, 17 July, 9:20 am → Sun, 18 July, 11:46 am | same day |
| Atlanta | Sunday 18 July 2027 | Sat, 17 July, 9:20 am → Sun, 18 July, 11:46 am | same day |
| San Francisco Bay Area | Sunday 18 July 2027 | Sat, 17 July, 6:20 am → Sun, 18 July, 8:46 am | same day |
| Los Angeles | Sunday 18 July 2027 | Sat, 17 July, 6:20 am → Sun, 18 July, 8:46 am | same day |
| Seattle | Sunday 18 July 2027 | Sat, 17 July, 6:20 am → Sun, 18 July, 8:46 am | same day |
Rule: the day the tithi is current at local sunrise (udaya tithi).
The full moon of Ashadha, dedicated to the teacher. It is Vyasa Purnima for the sage who arranged the Vedas and composed the Mahabharata, and for Buddhists the day of the first sermon at Sarnath, when the wheel of the teaching was set turning.
Students honour their teachers, spiritual and academic, and the four-month retreat of the rains (chaturmas, vassa) begins.
In the glossary: guru.
Sunday 18 July 2027. Ashadha Shukla Purnima; the tithi runs Sat, 17 July, 11:20 pm to Mon, 19 July, 1:46 am Sydney time.
Sunday 18 July 2027 in Kathmandu. Ashadha Shukla Purnima; the tithi runs Sat, 17 July, 7:05 pm to Sun, 18 July, 9:31 pm Nepal time.
Sunday 18 July 2027 in New York (the same day across the US cities listed). US sunrises fall ten to fifteen hours behind Kathmandu's, so when the tithi ends in that gap the US keeps the festival a day earlier than Nepal.
Because the day is decided by which civil day the tithi is current at local sunrise, and sunrises differ by up to a day's worth of hours between Sydney, Kathmandu and the US. In 2027 every calendar city keeps Guru Purnima on the same day, Sunday 18 July 2027.
Sun and Moon positions from Meeus' algorithms with the Lahiri ayanamsa, amanta lunar months named by the solar ingress inside them, and the day on which the tithi is current at local sunrise (udaya tithi). Tithi boundaries are accurate to a few minutes; a boundary within minutes of sunrise is worth checking against your temple's panchang.
Other years: Guru Purnima 2026. Nearby: Buddha Purnima · Janai Purnima · all festivals.
See also: the full-year calendar by city · why festival dates differ between Nepal, India and Australia.
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