Trayodashi (त्रयोदशी) dates and timings in Perth for 2023
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 | 4 Jan 2023, 12:32 am GMT+8 | 5 Jan 2023, 2:31 am GMT+8 | 25 hr 59 min | Yes |
| 2 | 2 Feb 2023, 6:56 pm GMT+8 | 3 Feb 2023, 9:28 pm GMT+8 | 26 hr 32 min | Yes |
| 3 | 4 Mar 2023, 2:13 pm GMT+8 | 5 Mar 2023, 4:37 pm GMT+8 | 26 hr 24 min | Yes |
| 4 | 3 Apr 2023, 8:54 am GMT+8 | 4 Apr 2023, 10:35 am GMT+8 | 25 hr 41 min | Yes |
| 5 | 3 May 2023, 1:48 am GMT+8 | 4 May 2023, 2:20 am GMT+8 | 24 hr 32 min | Yes |
| 6 | 1 Jun 2023, 4:09 pm GMT+8 | 2 Jun 2023, 3:18 pm GMT+8 | 23 hr 9 min | Yes |
| 7 | 1 Jul 2023, 3:47 am GMT+8 | 2 Jul 2023, 1:37 am GMT+8 | 21 hr 51 min | Yes |
| 8 | 30 Jul 2023, 1:04 pm GMT+8 | 31 Jul 2023, 9:57 am GMT+8 | 20 hr 52 min | Yes |
| 9 | 28 Aug 2023, 8:53 pm GMT+8 | 29 Aug 2023, 5:18 pm GMT+8 | 20 hr 25 min | Yes |
| 10 | 27 Sept 2023, 4:16 am GMT+8 | 28 Sept 2023, 12:49 am GMT+8 | 20 hr 33 min | Yes |
| 11 | 26 Oct 2023, 12:14 pm GMT+8 | 27 Oct 2023, 9:27 am GMT+8 | 21 hr 13 min | Yes |
| 12 | 24 Nov 2023, 9:37 pm GMT+8 | 25 Nov 2023, 7:52 pm GMT+8 | 22 hr 16 min | Yes |
| 13 | 24 Dec 2023, 8:54 am GMT+8 | 25 Dec 2023, 8:25 am GMT+8 | 23 hr 31 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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