Trayodashi (त्रयोदशी) dates and timings in Perth for 1937
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 | 24 Jan 1937, 6:27 am GMT+8 | 25 Jan 1937, 4:27 am GMT+8 | 22 hr 1 min | Yes |
| 2 | 22 Feb 1937, 5:07 pm GMT+8 | 23 Feb 1937, 4:18 pm GMT+8 | 23 hr 11 min | Yes |
| 3 | 24 Mar 1937, 4:46 am GMT+8 | 25 Mar 1937, 5:11 am GMT+8 | 24 hr 24 min | Yes |
| 4 | 22 Apr 1937, 5:44 pm GMT+8 | 23 Apr 1937, 7:17 pm GMT+8 | 25 hr 33 min | Yes |
| 5 | 22 May 1937, 8:12 am GMT+8 | 23 May 1937, 10:33 am GMT+8 | 26 hr 21 min | Yes |
| 6 | 20 Jun 1937, 11:55 pm GMT+8 | 22 Jun 1937, 2:28 am GMT+8 | 26 hr 33 min | Yes |
| 7 | 20 Jul 1937, 4:12 pm GMT+8 | 21 Jul 1937, 6:11 pm GMT+8 | 26 hr 0 min | Yes |
| 8 | 19 Aug 1937, 8:08 am GMT+8 | 20 Aug 1937, 8:59 am GMT+8 | 24 hr 50 min | Yes |
| 9 | 17 Sept 1937, 11:07 pm GMT+8 | 18 Sept 1937, 10:32 pm GMT+8 | 23 hr 26 min | Yes |
| 10 | 17 Oct 1937, 12:56 pm GMT+8 | 18 Oct 1937, 11:05 am GMT+8 | 22 hr 8 min | Yes |
| 11 | 16 Nov 1937, 1:44 am GMT+8 | 16 Nov 1937, 10:56 pm GMT+8 | 21 hr 12 min | No |
| 12 | 15 Dec 1937, 1:33 pm GMT+8 | 16 Dec 1937, 10:15 am GMT+8 | 20 hr 42 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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