Purnima (पूर्णिमा) dates and timings in Perth for 1917
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 | 7 Jan 1917, 2:18 pm GMT+9 | 8 Jan 1917, 4:41 pm GMT+9 | 26 hr 23 min | Yes |
| 2 | 6 Feb 1917, 9:47 am GMT+9 | 7 Feb 1917, 12:28 pm GMT+9 | 26 hr 41 min | Yes |
| 3 | 8 Mar 1917, 4:53 am GMT+9 | 9 Mar 1917, 6:57 am GMT+9 | 26 hr 4 min | Yes |
| 4 | 6 Apr 1917, 8:55 pm GMT+8 | 7 Apr 1917, 9:48 pm GMT+8 | 24 hr 53 min | Yes |
| 5 | 6 May 1917, 11:11 am GMT+8 | 7 May 1917, 10:42 am GMT+8 | 23 hr 31 min | Yes |
| 6 | 4 Jun 1917, 10:52 pm GMT+8 | 5 Jun 1917, 9:06 pm GMT+8 | 22 hr 14 min | Yes |
| 7 | 4 Jul 1917, 8:30 am GMT+8 | 5 Jul 1917, 5:40 am GMT+8 | 21 hr 10 min | Yes |
| 8 | 2 Aug 1917, 4:46 pm GMT+8 | 3 Aug 1917, 1:10 pm GMT+8 | 20 hr 25 min | Yes |
| 9 | 1 Sept 1917, 12:22 am GMT+8 | 1 Sept 1917, 8:28 pm GMT+8 | 20 hr 6 min | No |
| 10 | 30 Sept 1917, 8:10 am GMT+8 | 1 Oct 1917, 4:30 am GMT+8 | 20 hr 20 min | Yes |
| 11 | 29 Oct 1917, 5:07 pm GMT+8 | 30 Oct 1917, 2:18 pm GMT+8 | 21 hr 11 min | Yes |
| 12 | 28 Nov 1917, 4:08 am GMT+8 | 29 Nov 1917, 2:41 am GMT+8 | 22 hr 32 min | Yes |
| 13 | 27 Dec 1917, 5:45 pm GMT+8 | 28 Dec 1917, 5:51 pm GMT+8 | 24 hr 6 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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