Purnima (पूर्णिमा) dates and timings in Perth for 1931
Verified astronomical start and end times for lunar day 15 in Perth, shown in Australia/Perth.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 3 Jan 1931, 11:53 pm GMT+8 | 4 Jan 1931, 9:14 pm GMT+8 | 21 hr 21 min | Yes |
| 2 | 2 Feb 1931, 11:58 am GMT+8 | 3 Feb 1931, 8:25 am GMT+8 | 20 hr 28 min | Yes |
| 3 | 3 Mar 1931, 10:25 pm GMT+8 | 4 Mar 1931, 6:35 pm GMT+8 | 20 hr 10 min | Yes |
| 4 | 2 Apr 1931, 7:40 am GMT+8 | 3 Apr 1931, 4:05 am GMT+8 | 20 hr 25 min | Yes |
| 5 | 1 May 1931, 4:09 pm GMT+8 | 2 May 1931, 1:14 pm GMT+8 | 21 hr 5 min | Yes |
| 6 | 31 May 1931, 12:27 am GMT+8 | 31 May 1931, 10:32 pm GMT+8 | 22 hr 5 min | No |
| 7 | 29 Jun 1931, 9:26 am GMT+8 | 30 Jun 1931, 8:46 am GMT+8 | 23 hr 20 min | Yes |
| 8 | 28 Jul 1931, 8:05 pm GMT+8 | 29 Jul 1931, 8:47 pm GMT+8 | 24 hr 42 min | Yes |
| 9 | 27 Aug 1931, 9:14 am GMT+8 | 28 Aug 1931, 11:09 am GMT+8 | 25 hr 55 min | Yes |
| 10 | 26 Sept 1931, 1:09 am GMT+8 | 27 Sept 1931, 3:44 am GMT+8 | 26 hr 36 min | Yes |
| 11 | 25 Oct 1931, 7:07 pm GMT+8 | 26 Oct 1931, 9:33 pm GMT+8 | 26 hr 26 min | Yes |
| 12 | 24 Nov 1931, 1:42 pm GMT+8 | 25 Nov 1931, 3:09 pm GMT+8 | 25 hr 27 min | Yes |
| 13 | 24 Dec 1931, 7:21 am GMT+8 | 25 Dec 1931, 7:23 am GMT+8 | 24 hr 2 min | Yes |
How these timings are calculated
BDA calculates the geocentric angular separation of the Moon and Sun and divides the full cycle into 30 equal 12-degree Tithi sectors. UTC boundaries are converted to the timezone resolved from the listed city coordinates.
Scope: These are astronomical Tithi spans only. This page does not choose a festival, Vrat, Parana, or Muhurta date. Those decisions require their separately certified sunrise-prevalence and observance rules.
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