Dwadashi (द्वादशी) dates and timings in Perth for 1971
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 | 7 Jan 1971, 8:33 pm GMT+8 | 8 Jan 1971, 8:05 pm GMT+8 | 23 hr 33 min | Yes |
| 2 | 6 Feb 1971, 9:28 am GMT+8 | 7 Feb 1971, 10:23 am GMT+8 | 24 hr 55 min | Yes |
| 3 | 8 Mar 1971, 12:53 am GMT+8 | 9 Mar 1971, 2:58 am GMT+8 | 26 hr 4 min | Yes |
| 4 | 6 Apr 1971, 6:08 pm GMT+8 | 7 Apr 1971, 8:45 pm GMT+8 | 26 hr 38 min | Yes |
| 5 | 6 May 1971, 11:52 am GMT+8 | 7 May 1971, 2:18 pm GMT+8 | 26 hr 25 min | Yes |
| 6 | 5 Jun 1971, 4:51 am GMT+8 | 6 Jun 1971, 6:27 am GMT+8 | 25 hr 37 min | Yes |
| 7 | 4 Jul 1971, 8:21 pm GMT+8 | 5 Jul 1971, 8:50 pm GMT+8 | 24 hr 29 min | Yes |
| 8 | 3 Aug 1971, 10:14 am GMT+8 | 4 Aug 1971, 9:32 am GMT+8 | 23 hr 18 min | Yes |
| 9 | 1 Sept 1971, 10:39 pm GMT+8 | 2 Sept 1971, 8:51 pm GMT+8 | 22 hr 12 min | Yes |
| 10 | 1 Oct 1971, 9:43 am GMT+8 | 2 Oct 1971, 7:03 am GMT+8 | 21 hr 20 min | Yes |
| 11 | 30 Oct 1971, 7:36 pm GMT+8 | 31 Oct 1971, 4:27 pm GMT+8 | 20 hr 50 min | Yes |
| 12 | 29 Nov 1971, 4:37 am GMT+8 | 30 Nov 1971, 1:29 am GMT+8 | 20 hr 52 min | Yes |
| 13 | 28 Dec 1971, 1:23 pm GMT+8 | 29 Dec 1971, 10:50 am GMT+8 | 21 hr 27 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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