Dwadashi (द्वादशी) dates and timings in Perth for 2031
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 | 20 Jan 2031, 1:49 am GMT+8 | 20 Jan 2031, 10:46 pm GMT+8 | 20 hr 57 min | No |
| 2 | 18 Feb 2031, 10:58 am GMT+8 | 19 Feb 2031, 8:08 am GMT+8 | 21 hr 11 min | Yes |
| 3 | 19 Mar 2031, 6:59 pm GMT+8 | 20 Mar 2031, 4:50 pm GMT+8 | 21 hr 50 min | Yes |
| 4 | 18 Apr 2031, 2:53 am GMT+8 | 19 Apr 2031, 1:46 am GMT+8 | 22 hr 53 min | Yes |
| 5 | 17 May 2031, 11:48 am GMT+8 | 18 May 2031, 11:59 am GMT+8 | 24 hr 10 min | Yes |
| 6 | 15 Jun 2031, 10:42 pm GMT+8 | 17 Jun 2031, 12:06 am GMT+8 | 25 hr 24 min | Yes |
| 7 | 15 Jul 2031, 11:59 am GMT+8 | 16 Jul 2031, 2:15 pm GMT+8 | 26 hr 16 min | Yes |
| 8 | 14 Aug 2031, 3:28 am GMT+8 | 15 Aug 2031, 6:00 am GMT+8 | 26 hr 32 min | Yes |
| 9 | 12 Sept 2031, 8:36 pm GMT+8 | 13 Sept 2031, 10:45 pm GMT+8 | 26 hr 9 min | Yes |
| 10 | 12 Oct 2031, 2:34 pm GMT+8 | 13 Oct 2031, 3:52 pm GMT+8 | 25 hr 18 min | Yes |
| 11 | 11 Nov 2031, 8:32 am GMT+8 | 12 Nov 2031, 8:40 am GMT+8 | 24 hr 8 min | Yes |
| 12 | 11 Dec 2031, 1:31 am GMT+8 | 12 Dec 2031, 12:23 am GMT+8 | 22 hr 52 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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