Trayodashi (त्रयोदशी) dates and timings in Perth for 1923
Verified astronomical start and end times for lunar day 13 in Perth, shown in Australia/Perth.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 31 Dec 1922, 11:07 am GMT+8 | 1 Jan 1923, 11:33 am GMT+8 | 24 hr 26 min | Yes |
| 2 | 30 Jan 1923, 4:37 am GMT+8 | 31 Jan 1923, 3:37 am GMT+8 | 23 hr 0 min | Yes |
| 3 | 28 Feb 1923, 7:25 pm GMT+8 | 1 Mar 1923, 5:13 pm GMT+8 | 21 hr 49 min | Yes |
| 4 | 30 Mar 1923, 7:19 am GMT+8 | 31 Mar 1923, 4:17 am GMT+8 | 20 hr 59 min | Yes |
| 5 | 28 Apr 1923, 4:28 pm GMT+8 | 29 Apr 1923, 1:02 pm GMT+8 | 20 hr 33 min | Yes |
| 6 | 27 May 1923, 11:28 pm GMT+8 | 28 May 1923, 8:02 pm GMT+8 | 20 hr 35 min | Yes |
| 7 | 26 Jun 1923, 5:17 am GMT+8 | 27 Jun 1923, 2:22 am GMT+8 | 21 hr 5 min | Yes |
| 8 | 25 Jul 1923, 11:17 am GMT+8 | 26 Jul 1923, 9:20 am GMT+8 | 22 hr 3 min | Yes |
| 9 | 23 Aug 1923, 6:57 pm GMT+8 | 24 Aug 1923, 6:20 pm GMT+8 | 23 hr 23 min | Yes |
| 10 | 22 Sept 1923, 5:34 am GMT+8 | 23 Sept 1923, 6:23 am GMT+8 | 24 hr 49 min | Yes |
| 11 | 21 Oct 1923, 7:48 pm GMT+8 | 22 Oct 1923, 9:47 pm GMT+8 | 25 hr 59 min | Yes |
| 12 | 20 Nov 1923, 1:23 pm GMT+8 | 21 Nov 1923, 3:56 pm GMT+8 | 26 hr 34 min | Yes |
| 13 | 20 Dec 1923, 9:09 am GMT+8 | 21 Dec 1923, 11:34 am GMT+8 | 26 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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