Trayodashi (त्रयोदशी) dates and timings in Perth for 2017
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 | 10 Jan 2017, 4:31 am GMT+8 | 11 Jan 2017, 1:24 am GMT+8 | 20 hr 53 min | Yes |
| 2 | 8 Feb 2017, 1:59 pm GMT+8 | 9 Feb 2017, 11:51 am GMT+8 | 21 hr 52 min | Yes |
| 3 | 10 Mar 2017, 12:09 am GMT+8 | 10 Mar 2017, 11:20 pm GMT+8 | 23 hr 11 min | No |
| 4 | 8 Apr 2017, 11:30 am GMT+8 | 9 Apr 2017, 12:00 pm GMT+8 | 24 hr 30 min | Yes |
| 5 | 8 May 2017, 12:12 am GMT+8 | 9 May 2017, 1:46 am GMT+8 | 25 hr 34 min | Yes |
| 6 | 6 Jun 2017, 2:13 pm GMT+8 | 7 Jun 2017, 4:26 pm GMT+8 | 26 hr 13 min | Yes |
| 7 | 6 Jul 2017, 5:22 am GMT+8 | 7 Jul 2017, 7:44 am GMT+8 | 26 hr 23 min | Yes |
| 8 | 4 Aug 2017, 9:22 pm GMT+8 | 5 Aug 2017, 11:21 pm GMT+8 | 25 hr 59 min | Yes |
| 9 | 3 Sept 2017, 1:42 pm GMT+8 | 4 Sept 2017, 2:44 pm GMT+8 | 25 hr 2 min | Yes |
| 10 | 3 Oct 2017, 5:39 am GMT+8 | 4 Oct 2017, 5:19 am GMT+8 | 23 hr 40 min | Yes |
| 11 | 1 Nov 2017, 8:27 pm GMT+8 | 2 Nov 2017, 6:41 pm GMT+8 | 22 hr 14 min | Yes |
| 12 | 1 Dec 2017, 9:43 am GMT+8 | 2 Dec 2017, 6:50 am GMT+8 | 21 hr 7 min | Yes |
| 13 | 30 Dec 2017, 9:25 pm GMT+8 | 31 Dec 2017, 5:58 pm GMT+8 | 20 hr 33 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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