Trayodashi (त्रयोदशी) dates and timings in Adelaide for 1921
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 | 21 Jan 1921, 7:52 pm GMT+9:30 | 22 Jan 1921, 4:21 pm GMT+9:30 | 20 hr 30 min | Yes |
| 2 | 20 Feb 1921, 5:31 am GMT+9:30 | 21 Feb 1921, 2:02 am GMT+9:30 | 20 hr 31 min | Yes |
| 3 | 21 Mar 1921, 1:49 pm GMT+9:30 | 22 Mar 1921, 10:56 am GMT+9:30 | 21 hr 8 min | Yes |
| 4 | 19 Apr 1921, 9:42 pm GMT+9:30 | 20 Apr 1921, 7:53 pm GMT+9:30 | 22 hr 11 min | Yes |
| 5 | 19 May 1921, 6:11 am GMT+9:30 | 20 May 1921, 5:38 am GMT+9:30 | 23 hr 27 min | Yes |
| 6 | 17 Jun 1921, 4:02 pm GMT+9:30 | 18 Jun 1921, 4:43 pm GMT+9:30 | 24 hr 41 min | Yes |
| 7 | 17 Jul 1921, 3:50 am GMT+9:30 | 18 Jul 1921, 5:30 am GMT+9:30 | 25 hr 41 min | Yes |
| 8 | 15 Aug 1921, 5:52 pm GMT+9:30 | 16 Aug 1921, 8:10 pm GMT+9:30 | 26 hr 18 min | Yes |
| 9 | 14 Sept 1921, 10:09 am GMT+9:30 | 15 Sept 1921, 12:34 pm GMT+9:30 | 26 hr 25 min | Yes |
| 10 | 14 Oct 1921, 4:12 am GMT+9:30 | 15 Oct 1921, 6:05 am GMT+9:30 | 25 hr 53 min | Yes |
| 11 | 12 Nov 1921, 10:51 pm GMT+9:30 | 13 Nov 1921, 11:35 pm GMT+9:30 | 24 hr 44 min | Yes |
| 12 | 12 Dec 1921, 4:38 pm GMT+9:30 | 13 Dec 1921, 3:52 pm GMT+9:30 | 23 hr 14 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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