Dwitiya (द्वितीया) dates and timings in Perth for 1979
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 | 14 Jan 1979, 5:38 pm GMT+8 | 15 Jan 1979, 8:17 pm GMT+8 | 26 hr 39 min | Yes |
| 2 | 13 Feb 1979, 1:14 pm GMT+8 | 14 Feb 1979, 3:39 pm GMT+8 | 26 hr 25 min | Yes |
| 3 | 15 Mar 1979, 7:01 am GMT+8 | 16 Mar 1979, 8:24 am GMT+8 | 25 hr 23 min | Yes |
| 4 | 13 Apr 1979, 9:39 pm GMT+8 | 14 Apr 1979, 9:34 pm GMT+8 | 23 hr 55 min | Yes |
| 5 | 13 May 1979, 8:54 am GMT+8 | 14 May 1979, 7:22 am GMT+8 | 22 hr 28 min | Yes |
| 6 | 11 Jun 1979, 5:31 pm GMT+8 | 12 Jun 1979, 2:51 pm GMT+8 | 21 hr 21 min | Yes |
| 7 | 11 Jul 1979, 12:42 am GMT+8 | 11 Jul 1979, 9:20 pm GMT+8 | 20 hr 38 min | No |
| 8 | 9 Aug 1979, 7:37 am GMT+8 | 10 Aug 1979, 3:58 am GMT+8 | 20 hr 21 min | Yes |
| 9 | 7 Sept 1979, 3:14 pm GMT+8 | 8 Sept 1979, 11:43 am GMT+8 | 20 hr 29 min | Yes |
| 10 | 7 Oct 1979, 12:17 am GMT+8 | 7 Oct 1979, 9:21 pm GMT+8 | 21 hr 4 min | No |
| 11 | 5 Nov 1979, 11:24 am GMT+8 | 6 Nov 1979, 9:32 am GMT+8 | 22 hr 8 min | Yes |
| 12 | 5 Dec 1979, 1:06 am GMT+8 | 6 Dec 1979, 12:42 am GMT+8 | 23 hr 36 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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