Dwitiya (द्वितीया) dates and timings in Perth for 1921
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 | 25 Jan 1921, 3:16 am GMT+8 | 25 Jan 1921, 11:43 pm GMT+8 | 20 hr 26 min | No |
| 2 | 23 Feb 1921, 2:22 pm GMT+8 | 24 Feb 1921, 11:40 am GMT+8 | 21 hr 18 min | Yes |
| 3 | 25 Mar 1921, 2:19 am GMT+8 | 26 Mar 1921, 12:54 am GMT+8 | 22 hr 35 min | Yes |
| 4 | 23 Apr 1921, 3:13 pm GMT+8 | 24 Apr 1921, 3:10 pm GMT+8 | 23 hr 57 min | Yes |
| 5 | 23 May 1921, 4:57 am GMT+8 | 24 May 1921, 6:07 am GMT+8 | 25 hr 10 min | Yes |
| 6 | 21 Jun 1921, 7:24 pm GMT+8 | 22 Jun 1921, 9:26 pm GMT+8 | 26 hr 2 min | Yes |
| 7 | 21 Jul 1921, 10:26 am GMT+8 | 22 Jul 1921, 12:51 pm GMT+8 | 26 hr 25 min | Yes |
| 8 | 20 Aug 1921, 1:48 am GMT+8 | 21 Aug 1921, 3:59 am GMT+8 | 26 hr 11 min | Yes |
| 9 | 18 Sept 1921, 5:01 pm GMT+8 | 19 Sept 1921, 6:21 pm GMT+8 | 25 hr 20 min | Yes |
| 10 | 18 Oct 1921, 7:27 am GMT+8 | 19 Oct 1921, 7:26 am GMT+8 | 23 hr 59 min | Yes |
| 11 | 16 Nov 1921, 8:34 pm GMT+8 | 17 Nov 1921, 7:04 pm GMT+8 | 22 hr 30 min | Yes |
| 12 | 16 Dec 1921, 8:20 am GMT+8 | 17 Dec 1921, 5:35 am GMT+8 | 21 hr 15 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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