Trayodashi (त्रयोदशी) dates and timings in Adelaide for 1980
Verified astronomical start and end times for lunar day 28 in Adelaide, shown in Australia/Adelaide.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 15 Jan 1980, 1:33 pm GMT+10:30 | 16 Jan 1980, 12:12 pm GMT+10:30 | 22 hr 39 min | Yes |
| 2 | 14 Feb 1980, 4:03 am GMT+10:30 | 15 Feb 1980, 1:36 am GMT+10:30 | 21 hr 33 min | Yes |
| 3 | 14 Mar 1980, 2:53 pm GMT+9:30 | 15 Mar 1980, 11:43 am GMT+9:30 | 20 hr 50 min | Yes |
| 4 | 13 Apr 1980, 12:05 am GMT+9:30 | 13 Apr 1980, 8:38 pm GMT+9:30 | 20 hr 33 min | No |
| 5 | 12 May 1980, 7:12 am GMT+9:30 | 13 May 1980, 3:55 am GMT+9:30 | 20 hr 44 min | Yes |
| 6 | 10 Jun 1980, 1:14 pm GMT+9:30 | 11 Jun 1980, 10:37 am GMT+9:30 | 21 hr 23 min | Yes |
| 7 | 9 Jul 1980, 7:35 pm GMT+9:30 | 10 Jul 1980, 6:03 pm GMT+9:30 | 22 hr 29 min | Yes |
| 8 | 8 Aug 1980, 3:40 am GMT+9:30 | 9 Aug 1980, 3:31 am GMT+9:30 | 23 hr 51 min | Yes |
| 9 | 6 Sept 1980, 2:41 pm GMT+9:30 | 7 Sept 1980, 3:55 pm GMT+9:30 | 25 hr 13 min | Yes |
| 10 | 6 Oct 1980, 5:10 am GMT+9:30 | 7 Oct 1980, 7:24 am GMT+9:30 | 26 hr 14 min | Yes |
| 11 | 4 Nov 1980, 11:45 pm GMT+10:30 | 6 Nov 1980, 2:21 am GMT+10:30 | 26 hr 36 min | Yes |
| 12 | 4 Dec 1980, 7:20 pm GMT+10:30 | 5 Dec 1980, 9:36 pm GMT+10:30 | 26 hr 15 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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