Dwadashi (द्वादशी) dates and timings in Perth for 1980
Verified astronomical start and end times for lunar day 12 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 | 28 Jan 1980, 6:58 am GMT+8 | 29 Jan 1980, 7:08 am GMT+8 | 24 hr 10 min | Yes |
| 2 | 26 Feb 1980, 8:54 pm GMT+8 | 27 Feb 1980, 10:23 pm GMT+8 | 25 hr 29 min | Yes |
| 3 | 27 Mar 1980, 1:03 pm GMT+8 | 28 Mar 1980, 3:27 pm GMT+8 | 26 hr 24 min | Yes |
| 4 | 26 Apr 1980, 6:25 am GMT+8 | 27 Apr 1980, 9:02 am GMT+8 | 26 hr 37 min | Yes |
| 5 | 25 May 1980, 11:43 pm GMT+8 | 27 May 1980, 1:50 am GMT+8 | 26 hr 7 min | Yes |
| 6 | 24 Jun 1980, 3:58 pm GMT+8 | 25 Jun 1980, 5:06 pm GMT+8 | 25 hr 8 min | Yes |
| 7 | 24 Jul 1980, 6:46 am GMT+8 | 25 Jul 1980, 6:44 am GMT+8 | 23 hr 58 min | Yes |
| 8 | 22 Aug 1980, 8:08 pm GMT+8 | 23 Aug 1980, 6:56 pm GMT+8 | 22 hr 48 min | Yes |
| 9 | 21 Sept 1980, 8:10 am GMT+8 | 22 Sept 1980, 5:57 am GMT+8 | 21 hr 47 min | Yes |
| 10 | 20 Oct 1980, 6:56 pm GMT+8 | 21 Oct 1980, 3:59 pm GMT+8 | 21 hr 4 min | Yes |
| 11 | 19 Nov 1980, 4:34 am GMT+8 | 20 Nov 1980, 1:21 am GMT+8 | 20 hr 47 min | Yes |
| 12 | 18 Dec 1980, 1:30 pm GMT+8 | 19 Dec 1980, 10:33 am GMT+8 | 21 hr 4 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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