Trayodashi (त्रयोदशी) dates and timings in Perth for 2091
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 | 3 Jan 2091, 1:39 am GMT+8 | 4 Jan 2091, 1:40 am GMT+8 | 24 hr 1 min | Yes |
| 2 | 1 Feb 2091, 6:32 pm GMT+8 | 2 Feb 2091, 5:10 pm GMT+8 | 22 hr 39 min | Yes |
| 3 | 3 Mar 2091, 8:45 am GMT+8 | 4 Mar 2091, 6:17 am GMT+8 | 21 hr 33 min | Yes |
| 4 | 1 Apr 2091, 8:05 pm GMT+8 | 2 Apr 2091, 4:54 pm GMT+8 | 20 hr 49 min | Yes |
| 5 | 1 May 2091, 4:46 am GMT+8 | 2 May 2091, 1:16 am GMT+8 | 20 hr 30 min | Yes |
| 6 | 30 May 2091, 11:25 am GMT+8 | 31 May 2091, 8:05 am GMT+8 | 20 hr 40 min | Yes |
| 7 | 28 Jun 2091, 5:12 pm GMT+8 | 29 Jun 2091, 2:31 pm GMT+8 | 21 hr 19 min | Yes |
| 8 | 27 Jul 2091, 11:31 pm GMT+8 | 28 Jul 2091, 9:57 pm GMT+8 | 22 hr 26 min | Yes |
| 9 | 26 Aug 2091, 7:50 am GMT+8 | 27 Aug 2091, 7:39 am GMT+8 | 23 hr 49 min | Yes |
| 10 | 24 Sept 2091, 7:16 pm GMT+8 | 25 Sept 2091, 8:27 pm GMT+8 | 25 hr 12 min | Yes |
| 11 | 24 Oct 2091, 10:15 am GMT+8 | 25 Oct 2091, 12:27 pm GMT+8 | 26 hr 12 min | Yes |
| 12 | 23 Nov 2091, 4:20 am GMT+8 | 24 Nov 2091, 6:54 am GMT+8 | 26 hr 34 min | Yes |
| 13 | 23 Dec 2091, 12:17 am GMT+8 | 24 Dec 2091, 2:32 am GMT+8 | 26 hr 15 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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