Trayodashi (त्रयोदशी) dates and timings in Adelaide for 1981
Verified astronomical start and end times for lunar day 28 in Adelaide, shown in Australia/Adelaide.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 3 Jan 1981, 3:25 pm GMT+10:30 | 4 Jan 1981, 4:46 pm GMT+10:30 | 25 hr 21 min | Yes |
| 2 | 2 Feb 1981, 10:24 am GMT+10:30 | 3 Feb 1981, 10:28 am GMT+10:30 | 24 hr 4 min | Yes |
| 3 | 4 Mar 1981, 1:53 am GMT+9:30 | 5 Mar 1981, 12:32 am GMT+9:30 | 22 hr 39 min | Yes |
| 4 | 2 Apr 1981, 3:02 pm GMT+9:30 | 3 Apr 1981, 12:28 pm GMT+9:30 | 21 hr 26 min | Yes |
| 5 | 2 May 1981, 12:52 am GMT+9:30 | 2 May 1981, 9:29 pm GMT+9:30 | 20 hr 38 min | No |
| 6 | 31 May 1981, 8:07 am GMT+9:30 | 1 Jun 1981, 4:31 am GMT+9:30 | 20 hr 24 min | Yes |
| 7 | 29 Jun 1981, 2:01 pm GMT+9:30 | 30 Jun 1981, 10:45 am GMT+9:30 | 20 hr 44 min | Yes |
| 8 | 28 Jul 1981, 7:55 pm GMT+9:30 | 29 Jul 1981, 5:28 pm GMT+9:30 | 21 hr 33 min | Yes |
| 9 | 27 Aug 1981, 3:04 am GMT+9:30 | 28 Aug 1981, 1:45 am GMT+9:30 | 22 hr 41 min | Yes |
| 10 | 25 Sept 1981, 12:32 pm GMT+9:30 | 26 Sept 1981, 12:31 pm GMT+9:30 | 23 hr 58 min | Yes |
| 11 | 25 Oct 1981, 1:05 am GMT+9:30 | 26 Oct 1981, 3:17 am GMT+10:30 | 25 hr 12 min | Yes |
| 12 | 23 Nov 1981, 5:59 pm GMT+10:30 | 24 Nov 1981, 8:10 pm GMT+10:30 | 26 hr 11 min | Yes |
| 13 | 23 Dec 1981, 12:52 pm GMT+10:30 | 24 Dec 1981, 3:32 pm GMT+10:30 | 26 hr 40 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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