Trayodashi (त्रयोदशी) dates and timings in Adelaide for 2031
Verified astronomical start and end times for lunar day 13 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 | 5 Jan 2031, 9:02 pm GMT+10:30 | 6 Jan 2031, 11:47 pm GMT+10:30 | 26 hr 46 min | Yes |
| 2 | 4 Feb 2031, 5:35 pm GMT+10:30 | 5 Feb 2031, 7:54 pm GMT+10:30 | 26 hr 19 min | Yes |
| 3 | 6 Mar 2031, 1:06 pm GMT+10:30 | 7 Mar 2031, 2:18 pm GMT+10:30 | 25 hr 12 min | Yes |
| 4 | 5 Apr 2031, 6:07 am GMT+10:30 | 6 Apr 2031, 4:57 am GMT+9:30 | 23 hr 50 min | Yes |
| 5 | 4 May 2031, 7:08 pm GMT+9:30 | 5 May 2031, 5:42 pm GMT+9:30 | 22 hr 33 min | Yes |
| 6 | 3 Jun 2031, 6:21 am GMT+9:30 | 4 Jun 2031, 3:51 am GMT+9:30 | 21 hr 30 min | Yes |
| 7 | 2 Jul 2031, 3:12 pm GMT+9:30 | 3 Jul 2031, 11:59 am GMT+9:30 | 20 hr 47 min | Yes |
| 8 | 31 Jul 2031, 10:23 pm GMT+9:30 | 1 Aug 2031, 6:50 pm GMT+9:30 | 20 hr 27 min | Yes |
| 9 | 30 Aug 2031, 4:48 am GMT+9:30 | 31 Aug 2031, 1:26 am GMT+9:30 | 20 hr 38 min | Yes |
| 10 | 28 Sept 2031, 11:37 am GMT+9:30 | 29 Sept 2031, 8:58 am GMT+9:30 | 21 hr 22 min | Yes |
| 11 | 27 Oct 2031, 9:06 pm GMT+10:30 | 28 Oct 2031, 7:40 pm GMT+10:30 | 22 hr 34 min | Yes |
| 12 | 26 Nov 2031, 8:21 am GMT+10:30 | 27 Nov 2031, 8:24 am GMT+10:30 | 24 hr 3 min | Yes |
| 13 | 25 Dec 2031, 10:50 pm GMT+10:30 | 27 Dec 2031, 12:15 am GMT+10:30 | 25 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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