Dwadashi (द्वादशी) dates and timings in Perth for 1985
Verified astronomical start and end times for lunar day 12 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 1985, 9:33 am GMT+8 | 4 Jan 1985, 10:45 am GMT+8 | 25 hr 12 min | Yes |
| 2 | 2 Feb 1985, 4:40 am GMT+8 | 3 Feb 1985, 4:24 am GMT+8 | 23 hr 44 min | Yes |
| 3 | 3 Mar 1985, 8:32 pm GMT+8 | 4 Mar 1985, 6:52 pm GMT+8 | 22 hr 20 min | Yes |
| 4 | 2 Apr 1985, 8:47 am GMT+8 | 3 Apr 1985, 6:07 am GMT+8 | 21 hr 20 min | Yes |
| 5 | 1 May 1985, 5:53 pm GMT+8 | 2 May 1985, 2:45 pm GMT+8 | 20 hr 52 min | Yes |
| 6 | 31 May 1985, 12:47 am GMT+8 | 31 May 1985, 9:40 pm GMT+8 | 20 hr 53 min | No |
| 7 | 29 Jun 1985, 6:30 am GMT+8 | 30 Jun 1985, 3:47 am GMT+8 | 21 hr 17 min | Yes |
| 8 | 28 Jul 1985, 12:11 pm GMT+8 | 29 Jul 1985, 10:12 am GMT+8 | 22 hr 1 min | Yes |
| 9 | 26 Aug 1985, 7:02 pm GMT+8 | 27 Aug 1985, 6:04 pm GMT+8 | 23 hr 1 min | Yes |
| 10 | 25 Sept 1985, 4:22 am GMT+8 | 26 Sept 1985, 4:38 am GMT+8 | 24 hr 16 min | Yes |
| 11 | 24 Oct 1985, 5:15 pm GMT+8 | 25 Oct 1985, 6:49 pm GMT+8 | 25 hr 33 min | Yes |
| 12 | 23 Nov 1985, 10:08 am GMT+8 | 24 Nov 1985, 12:40 pm GMT+8 | 26 hr 31 min | Yes |
| 13 | 23 Dec 1985, 6:12 am GMT+8 | 24 Dec 1985, 8:57 am GMT+8 | 26 hr 45 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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