Trayodashi (त्रयोदशी) dates and timings in Perth for 1938
Verified astronomical start and end times for lunar day 13 in Perth, shown in Australia/Perth.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 14 Jan 1938, 12:16 am GMT+8 | 14 Jan 1938, 8:54 pm GMT+8 | 20 hr 38 min | No |
| 2 | 12 Feb 1938, 9:50 am GMT+8 | 13 Feb 1938, 6:53 am GMT+8 | 21 hr 2 min | Yes |
| 3 | 13 Mar 1938, 6:41 pm GMT+8 | 14 Mar 1938, 4:34 pm GMT+8 | 21 hr 53 min | Yes |
| 4 | 12 Apr 1938, 3:40 am GMT+8 | 13 Apr 1938, 2:47 am GMT+8 | 23 hr 7 min | Yes |
| 5 | 11 May 1938, 1:47 pm GMT+8 | 12 May 1938, 2:17 pm GMT+8 | 24 hr 30 min | Yes |
| 6 | 10 Jun 1938, 1:45 am GMT+8 | 11 Jun 1938, 3:28 am GMT+8 | 25 hr 42 min | Yes |
| 7 | 9 Jul 1938, 3:44 pm GMT+8 | 10 Jul 1938, 6:09 pm GMT+8 | 26 hr 24 min | Yes |
| 8 | 8 Aug 1938, 7:21 am GMT+8 | 9 Aug 1938, 9:46 am GMT+8 | 26 hr 26 min | Yes |
| 9 | 6 Sept 1938, 11:57 pm GMT+8 | 8 Sept 1938, 1:46 am GMT+8 | 25 hr 49 min | Yes |
| 10 | 6 Oct 1938, 4:55 pm GMT+8 | 7 Oct 1938, 5:42 pm GMT+8 | 24 hr 47 min | Yes |
| 11 | 5 Nov 1938, 9:37 am GMT+8 | 6 Nov 1938, 9:09 am GMT+8 | 23 hr 31 min | Yes |
| 12 | 5 Dec 1938, 1:23 am GMT+8 | 5 Dec 1938, 11:37 pm GMT+8 | 22 hr 14 min | No |
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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