Trayodashi (त्रयोदशी) dates and timings in Adelaide for 2025
Verified astronomical start and end times for lunar day 13 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 | 11 Jan 2025, 1:22 pm GMT+10:30 | 12 Jan 2025, 11:34 am GMT+10:30 | 22 hr 12 min | Yes |
| 2 | 10 Feb 2025, 12:25 am GMT+10:30 | 10 Feb 2025, 11:57 pm GMT+10:30 | 23 hr 32 min | No |
| 3 | 11 Mar 2025, 1:14 pm GMT+10:30 | 12 Mar 2025, 2:12 pm GMT+10:30 | 24 hr 58 min | Yes |
| 4 | 10 Apr 2025, 2:55 am GMT+9:30 | 11 Apr 2025, 5:01 am GMT+9:30 | 26 hr 5 min | Yes |
| 5 | 9 May 2025, 6:56 pm GMT+9:30 | 10 May 2025, 9:30 pm GMT+9:30 | 26 hr 34 min | Yes |
| 6 | 8 Jun 2025, 11:18 am GMT+9:30 | 9 Jun 2025, 1:36 pm GMT+9:30 | 26 hr 18 min | Yes |
| 7 | 8 Jul 2025, 3:10 am GMT+9:30 | 9 Jul 2025, 4:38 am GMT+9:30 | 25 hr 28 min | Yes |
| 8 | 6 Aug 2025, 6:08 pm GMT+9:30 | 7 Aug 2025, 6:28 pm GMT+9:30 | 24 hr 19 min | Yes |
| 9 | 5 Sept 2025, 8:08 am GMT+9:30 | 6 Sept 2025, 7:13 am GMT+9:30 | 23 hr 5 min | Yes |
| 10 | 4 Oct 2025, 9:09 pm GMT+9:30 | 5 Oct 2025, 8:04 pm GMT+10:30 | 21 hr 55 min | Yes |
| 11 | 3 Nov 2025, 10:07 am GMT+10:30 | 4 Nov 2025, 7:06 am GMT+10:30 | 20 hr 59 min | Yes |
| 12 | 2 Dec 2025, 8:57 pm GMT+10:30 | 3 Dec 2025, 5:26 pm GMT+10:30 | 20 hr 29 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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