Dwitiya (द्वितीया) dates and timings in Perth for 1911
Verified astronomical start and end times for lunar day 17 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 1911, 3:41 am GMT+8 | 17 Jan 1911, 1:24 am GMT+8 | 21 hr 43 min | Yes |
| 2 | 14 Feb 1911, 5:08 pm GMT+8 | 15 Feb 1911, 4:15 pm GMT+8 | 23 hr 7 min | Yes |
| 3 | 16 Mar 1911, 8:01 am GMT+8 | 17 Mar 1911, 8:40 am GMT+8 | 24 hr 39 min | Yes |
| 4 | 15 Apr 1911, 12:04 am GMT+8 | 16 Apr 1911, 1:57 am GMT+8 | 25 hr 54 min | Yes |
| 5 | 14 May 1911, 4:29 pm GMT+8 | 15 May 1911, 6:57 pm GMT+8 | 26 hr 28 min | Yes |
| 6 | 13 Jun 1911, 8:16 am GMT+8 | 14 Jun 1911, 10:35 am GMT+8 | 26 hr 18 min | Yes |
| 7 | 12 Jul 1911, 10:46 pm GMT+8 | 14 Jul 1911, 12:20 am GMT+8 | 25 hr 34 min | Yes |
| 8 | 11 Aug 1911, 11:47 am GMT+8 | 12 Aug 1911, 12:16 pm GMT+8 | 24 hr 29 min | Yes |
| 9 | 9 Sept 1911, 11:34 pm GMT+8 | 10 Sept 1911, 10:49 pm GMT+8 | 23 hr 15 min | Yes |
| 10 | 9 Oct 1911, 10:31 am GMT+8 | 10 Oct 1911, 8:31 am GMT+8 | 22 hr 0 min | Yes |
| 11 | 7 Nov 1911, 8:57 pm GMT+8 | 8 Nov 1911, 5:54 pm GMT+8 | 20 hr 57 min | Yes |
| 12 | 7 Dec 1911, 7:11 am GMT+8 | 8 Dec 1911, 3:28 am GMT+8 | 20 hr 18 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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