12 dates · all times Los Angeles local (PDT), with daylight saving applied automatically.
| Date | Purnima | Tithi (local) | Notes |
|---|---|---|---|
| Thursday, January 21, 2027 | Pausha Purnima Vrat | Jan 20, 11:42 AM → Jan 22, 4:17 AM | Vrat & Snan-Daan same day |
| Saturday, February 20, 2027 | Magha Purnima Vrat | Feb 19, 6:30 PM → Feb 20, 3:24 PM | Vrat & Snan-Daan same day |
| Sunday, March 21, 2027 | Phalguna Purnima Vrat | Mar 21, 5:52 AM → Mar 22, 3:44 AM | Vrat & Snan-Daan same day |
| Tuesday, April 20, 2027 | Chaitra Purnima Vrat | Apr 19, 4:22 PM → Apr 20, 3:27 PM | Vrat & Snan-Daan same day |
| Wednesday, May 19, 2027 | Vaishakha Purnima Vrat | May 19, 3:33 AM → May 20, 3:59 AM | Vrat & Snan-Daan same day |
| Friday, June 18, 2027 | Jyeshtha Purnima Vrat | Jun 17, 4:05 PM → Jun 18, 5:44 PM | Vrat & Snan-Daan same day |
| Saturday, July 17, 2027 | Ashadha Purnima Vrat | Jul 17, 6:19 AM → Jul 18, 8:45 AM | Snan-Daan (Udaya): Jul 18 |
| Monday, August 16, 2027 | Shravana Purnima Vrat | Aug 15, 9:59 PM → Aug 17, 12:29 AM | Vrat & Snan-Daan same day |
| Wednesday, September 15, 2027 | Bhadrapada Purnima Vrat | Sep 14, 2:19 PM → Sep 15, 4:04 PM | Vrat & Snan-Daan same day |
| Thursday, October 14, 2027 | Ashwina Purnima Vrat | Oct 14, 6:20 AM → Oct 15, 6:47 AM | Vrat & Snan-Daan same day |
| Saturday, November 13, 2027 | Kartika Purnima Vrat | Nov 12, 8:26 PM → Nov 13, 7:26 PM | Vrat & Snan-Daan same day |
| Sunday, December 12, 2027 | Margashirsha Purnima Vrat | Dec 12, 10:26 AM → Dec 13, 8:09 AM | Snan-Daan (Udaya): Dec 13 |
Vrat / Satyanarayan puja on the day Purnima prevails at local midday; Snan-Daan on the Udaya-tithi day.
The Moon is at full strength on Purnima — its influence on the mind (Moon) is intense, hence the vrat's restraint and the Moon arghya; the most auspicious day for Vishnu puja and the Satyanarayan katha (Skanda Purana, Reva Khanda) — the katha may be held on any day but Purnima and the Sankranti are best; the fruit of the Purnima bath (Ganga-Yamuna-Narmada) and charity is multiplied.
The vrat rule: the Purnima by the udaya tithi or moonrise-vyapini — the fast on the udaya tithi day, the Satyanarayan katha and Moon arghya on the evening when the Purnima is present at moonrise (usually the same day; sometimes a day earlier — the list above follows the udaya rule, choose the katha evening from the tithi window); paran after seeing the Moon or the next morning.
Thursday, January 21, 2027 — Pausha Purnima Vrat (PDT).
The tithi is judged at the local moment (sunrise, moonrise or sunset) and Los Angeles is hours away from India in time, so the same tithi can fall on a different calendar date here.
Los Angeles local time (PDT), with daylight saving applied automatically.