Dwitiya (द्वितीया) dates and timings in Perth for 1991
Verified astronomical start and end times for lunar day 2 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 | 17 Jan 1991, 9:39 am GMT+8 | 18 Jan 1991, 11:05 am GMT+8 | 25 hr 26 min | Yes |
| 2 | 16 Feb 1991, 1:57 am GMT+8 | 17 Feb 1991, 1:52 am GMT+8 | 23 hr 56 min | Yes |
| 3 | 17 Mar 1991, 3:00 pm GMT+8 | 18 Mar 1991, 1:26 pm GMT+8 | 22 hr 25 min | Yes |
| 4 | 16 Apr 1991, 1:07 am GMT+8 | 16 Apr 1991, 10:23 pm GMT+8 | 21 hr 16 min | No |
| 5 | 15 May 1991, 9:14 am GMT+8 | 16 May 1991, 5:48 am GMT+8 | 20 hr 34 min | Yes |
| 6 | 13 Jun 1991, 4:21 pm GMT+8 | 14 Jun 1991, 12:43 pm GMT+8 | 20 hr 21 min | Yes |
| 7 | 12 Jul 1991, 11:26 pm GMT+8 | 13 Jul 1991, 8:00 pm GMT+8 | 20 hr 34 min | Yes |
| 8 | 11 Aug 1991, 7:17 am GMT+8 | 12 Aug 1991, 4:29 am GMT+8 | 21 hr 12 min | Yes |
| 9 | 9 Sept 1991, 4:45 pm GMT+8 | 10 Sept 1991, 3:00 pm GMT+8 | 22 hr 15 min | Yes |
| 10 | 9 Oct 1991, 4:42 am GMT+8 | 10 Oct 1991, 4:21 am GMT+8 | 23 hr 39 min | Yes |
| 11 | 7 Nov 1991, 7:46 pm GMT+8 | 8 Nov 1991, 8:57 pm GMT+8 | 25 hr 10 min | Yes |
| 12 | 7 Dec 1991, 2:55 pm GMT+9 | 8 Dec 1991, 5:16 pm GMT+9 | 26 hr 21 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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