Trayodashi (त्रयोदशी) dates and timings in Perth for 2011
Verified astronomical start and end times for lunar day 28 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 | 1 Jan 2011, 5:33 pm GMT+8 | 2 Jan 2011, 4:57 pm GMT+8 | 23 hr 24 min | Yes |
| 2 | 31 Jan 2011, 6:54 am GMT+8 | 1 Feb 2011, 7:43 am GMT+8 | 24 hr 49 min | Yes |
| 3 | 1 Mar 2011, 10:22 pm GMT+8 | 3 Mar 2011, 12:16 am GMT+8 | 25 hr 54 min | Yes |
| 4 | 31 Mar 2011, 3:09 pm GMT+8 | 1 Apr 2011, 5:35 pm GMT+8 | 26 hr 27 min | Yes |
| 5 | 30 Apr 2011, 8:18 am GMT+8 | 1 May 2011, 10:41 am GMT+8 | 26 hr 23 min | Yes |
| 6 | 30 May 2011, 1:00 am GMT+8 | 31 May 2011, 2:47 am GMT+8 | 25 hr 47 min | Yes |
| 7 | 28 Jun 2011, 4:34 pm GMT+8 | 29 Jun 2011, 5:16 pm GMT+8 | 24 hr 43 min | Yes |
| 8 | 28 Jul 2011, 6:32 am GMT+8 | 29 Jul 2011, 5:53 am GMT+8 | 23 hr 21 min | Yes |
| 9 | 26 Aug 2011, 6:44 pm GMT+8 | 27 Aug 2011, 4:45 pm GMT+8 | 22 hr 1 min | Yes |
| 10 | 25 Sept 2011, 5:23 am GMT+8 | 26 Sept 2011, 2:22 am GMT+8 | 21 hr 0 min | Yes |
| 11 | 24 Oct 2011, 3:02 pm GMT+8 | 25 Oct 2011, 11:32 am GMT+8 | 20 hr 30 min | Yes |
| 12 | 23 Nov 2011, 12:21 am GMT+8 | 23 Nov 2011, 8:58 pm GMT+8 | 20 hr 37 min | No |
| 13 | 22 Dec 2011, 9:55 am GMT+8 | 23 Dec 2011, 7:09 am GMT+8 | 21 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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