Dwitiya (द्वितीया) dates and timings in Adelaide for 1931
Verified astronomical start and end times for lunar day 17 in Adelaide, shown in Australia/Adelaide.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 5 Jan 1931, 7:45 pm GMT+9:30 | 6 Jan 1931, 4:35 pm GMT+9:30 | 20 hr 50 min | Yes |
| 2 | 4 Feb 1931, 6:14 am GMT+9:30 | 5 Feb 1931, 2:35 am GMT+9:30 | 20 hr 21 min | Yes |
| 3 | 5 Mar 1931, 4:17 pm GMT+9:30 | 6 Mar 1931, 12:42 pm GMT+9:30 | 20 hr 25 min | Yes |
| 4 | 4 Apr 1931, 2:11 am GMT+9:30 | 4 Apr 1931, 11:07 pm GMT+9:30 | 20 hr 56 min | No |
| 5 | 3 May 1931, 12:07 pm GMT+9:30 | 4 May 1931, 9:57 am GMT+9:30 | 21 hr 50 min | Yes |
| 6 | 1 Jun 1931, 10:32 pm GMT+9:30 | 2 Jun 1931, 9:34 pm GMT+9:30 | 23 hr 2 min | Yes |
| 7 | 1 Jul 1931, 10:06 am GMT+9:30 | 2 Jul 1931, 10:30 am GMT+9:30 | 24 hr 24 min | Yes |
| 8 | 30 Jul 1931, 11:28 pm GMT+9:30 | 1 Aug 1931, 1:08 am GMT+9:30 | 25 hr 40 min | Yes |
| 9 | 29 Aug 1931, 2:54 pm GMT+9:30 | 30 Aug 1931, 5:24 pm GMT+9:30 | 26 hr 30 min | Yes |
| 10 | 28 Sept 1931, 7:52 am GMT+9:30 | 29 Sept 1931, 10:26 am GMT+9:30 | 26 hr 33 min | Yes |
| 11 | 28 Oct 1931, 1:13 am GMT+9:30 | 29 Oct 1931, 3:01 am GMT+9:30 | 25 hr 49 min | Yes |
| 12 | 26 Nov 1931, 5:38 pm GMT+9:30 | 27 Nov 1931, 6:11 pm GMT+9:30 | 24 hr 32 min | Yes |
| 13 | 26 Dec 1931, 8:25 am GMT+9:30 | 27 Dec 1931, 7:33 am GMT+9:30 | 23 hr 8 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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