Dwadashi (द्वादशी) dates and timings in Perth for 2091
Verified astronomical start and end times for lunar day 27 in Perth, shown in Australia/Perth.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 16 Jan 2091, 2:48 am GMT+8 | 17 Jan 2091, 1:40 am GMT+8 | 22 hr 52 min | Yes |
| 2 | 14 Feb 2091, 2:10 pm GMT+8 | 15 Feb 2091, 2:21 pm GMT+8 | 24 hr 11 min | Yes |
| 3 | 16 Mar 2091, 3:41 am GMT+8 | 17 Mar 2091, 5:10 am GMT+8 | 25 hr 29 min | Yes |
| 4 | 14 Apr 2091, 7:13 pm GMT+8 | 15 Apr 2091, 9:36 pm GMT+8 | 26 hr 23 min | Yes |
| 5 | 14 May 2091, 11:56 am GMT+8 | 15 May 2091, 2:32 pm GMT+8 | 26 hr 36 min | Yes |
| 6 | 13 Jun 2091, 4:45 am GMT+8 | 14 Jun 2091, 6:53 am GMT+8 | 26 hr 8 min | Yes |
| 7 | 12 Jul 2091, 8:52 pm GMT+8 | 13 Jul 2091, 10:04 pm GMT+8 | 25 hr 12 min | Yes |
| 8 | 11 Aug 2091, 11:54 am GMT+8 | 12 Aug 2091, 11:57 am GMT+8 | 24 hr 4 min | Yes |
| 9 | 10 Sept 2091, 1:46 am GMT+8 | 11 Sept 2091, 12:39 am GMT+8 | 22 hr 53 min | Yes |
| 10 | 9 Oct 2091, 2:25 pm GMT+8 | 10 Oct 2091, 12:15 pm GMT+8 | 21 hr 50 min | Yes |
| 11 | 8 Nov 2091, 1:44 am GMT+8 | 8 Nov 2091, 10:49 pm GMT+8 | 21 hr 5 min | No |
| 12 | 7 Dec 2091, 11:46 am GMT+8 | 8 Dec 2091, 8:33 am GMT+8 | 20 hr 47 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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