Dwitiya (द्वितीया) dates and timings in Perth for 1980
Verified astronomical start and end times for lunar day 17 in Perth, shown in Australia/Perth.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 3 Jan 1980, 5:36 pm GMT+8 | 4 Jan 1980, 6:45 pm GMT+8 | 25 hr 9 min | Yes |
| 2 | 2 Feb 1980, 12:17 pm GMT+8 | 3 Feb 1980, 2:35 pm GMT+8 | 26 hr 18 min | Yes |
| 3 | 3 Mar 1980, 7:35 am GMT+8 | 4 Mar 1980, 10:13 am GMT+8 | 26 hr 38 min | Yes |
| 4 | 2 Apr 1980, 1:36 am GMT+8 | 3 Apr 1980, 3:44 am GMT+8 | 26 hr 8 min | Yes |
| 5 | 1 May 1980, 5:04 pm GMT+8 | 2 May 1980, 6:10 pm GMT+8 | 25 hr 6 min | Yes |
| 6 | 31 May 1980, 5:43 am GMT+8 | 1 Jun 1980, 5:35 am GMT+8 | 23 hr 51 min | Yes |
| 7 | 29 Jun 1980, 4:00 pm GMT+8 | 30 Jun 1980, 2:37 pm GMT+8 | 22 hr 36 min | Yes |
| 8 | 29 Jul 1980, 12:39 am GMT+8 | 29 Jul 1980, 10:09 pm GMT+8 | 21 hr 29 min | No |
| 9 | 27 Aug 1980, 8:29 am GMT+8 | 28 Aug 1980, 5:07 am GMT+8 | 20 hr 38 min | Yes |
| 10 | 25 Sept 1980, 4:18 pm GMT+8 | 26 Sept 1980, 12:30 pm GMT+8 | 20 hr 12 min | Yes |
| 11 | 25 Oct 1980, 12:58 am GMT+8 | 25 Oct 1980, 9:19 pm GMT+8 | 20 hr 21 min | No |
| 12 | 23 Nov 1980, 11:19 am GMT+8 | 24 Nov 1980, 8:27 am GMT+8 | 21 hr 7 min | Yes |
| 13 | 22 Dec 1980, 11:58 pm GMT+8 | 23 Dec 1980, 10:23 pm GMT+8 | 22 hr 25 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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