Dwitiya (द्वितीया) dates and timings in Perth for 1990
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 | 12 Jan 1990, 11:26 am GMT+8 | 13 Jan 1990, 10:32 am GMT+8 | 23 hr 5 min | Yes |
| 2 | 11 Feb 1990, 3:16 am GMT+8 | 12 Feb 1990, 3:49 am GMT+8 | 24 hr 33 min | Yes |
| 3 | 12 Mar 1990, 8:16 pm GMT+8 | 13 Mar 1990, 9:58 pm GMT+8 | 25 hr 42 min | Yes |
| 4 | 11 Apr 1990, 1:27 pm GMT+8 | 12 Apr 1990, 3:46 pm GMT+8 | 26 hr 20 min | Yes |
| 5 | 11 May 1990, 5:54 am GMT+8 | 12 May 1990, 8:16 am GMT+8 | 26 hr 22 min | Yes |
| 6 | 9 Jun 1990, 9:04 pm GMT+8 | 10 Jun 1990, 10:51 pm GMT+8 | 25 hr 48 min | Yes |
| 7 | 9 Jul 1990, 10:31 am GMT+8 | 10 Jul 1990, 11:13 am GMT+8 | 24 hr 42 min | Yes |
| 8 | 7 Aug 1990, 10:07 pm GMT+8 | 8 Aug 1990, 9:26 pm GMT+8 | 23 hr 19 min | Yes |
| 9 | 6 Sept 1990, 8:06 am GMT+8 | 7 Sept 1990, 6:03 am GMT+8 | 21 hr 57 min | Yes |
| 10 | 5 Oct 1990, 5:07 pm GMT+8 | 6 Oct 1990, 2:00 pm GMT+8 | 20 hr 53 min | Yes |
| 11 | 4 Nov 1990, 2:07 am GMT+8 | 4 Nov 1990, 10:27 pm GMT+8 | 20 hr 19 min | No |
| 12 | 3 Dec 1990, 11:58 am GMT+8 | 4 Dec 1990, 8:18 am GMT+8 | 20 hr 20 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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