Purnima (पूर्णिमा) dates and timings in Perth for 1991
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 | 31 Dec 1990, 6:14 am GMT+8 | 1 Jan 1991, 2:35 am GMT+8 | 20 hr 21 min | Yes |
| 2 | 29 Jan 1991, 5:05 pm GMT+8 | 30 Jan 1991, 2:09 pm GMT+8 | 21 hr 4 min | Yes |
| 3 | 28 Feb 1991, 4:16 am GMT+8 | 1 Mar 1991, 2:24 am GMT+8 | 22 hr 8 min | Yes |
| 4 | 29 Mar 1991, 3:52 pm GMT+8 | 30 Mar 1991, 3:17 pm GMT+8 | 23 hr 25 min | Yes |
| 5 | 28 Apr 1991, 4:13 am GMT+8 | 29 Apr 1991, 4:58 am GMT+8 | 24 hr 45 min | Yes |
| 6 | 27 May 1991, 5:42 pm GMT+8 | 28 May 1991, 7:36 pm GMT+8 | 25 hr 54 min | Yes |
| 7 | 26 Jun 1991, 8:27 am GMT+8 | 27 Jun 1991, 10:58 am GMT+8 | 26 hr 31 min | Yes |
| 8 | 26 Jul 1991, 12:02 am GMT+8 | 27 Jul 1991, 2:24 am GMT+8 | 26 hr 22 min | Yes |
| 9 | 24 Aug 1991, 3:38 pm GMT+8 | 25 Aug 1991, 5:07 pm GMT+8 | 25 hr 29 min | Yes |
| 10 | 23 Sept 1991, 6:32 am GMT+8 | 24 Sept 1991, 6:39 am GMT+8 | 24 hr 7 min | Yes |
| 11 | 22 Oct 1991, 8:26 pm GMT+8 | 23 Oct 1991, 7:08 pm GMT+8 | 22 hr 42 min | Yes |
| 12 | 21 Nov 1991, 10:27 am GMT+9 | 22 Nov 1991, 7:56 am GMT+9 | 21 hr 29 min | Yes |
| 13 | 20 Dec 1991, 10:44 pm GMT+9 | 21 Dec 1991, 7:23 pm GMT+9 | 20 hr 39 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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