Trayodashi (त्रयोदशी) dates and timings in Perth for 1913
Verified astronomical start and end times for lunar day 13 in Perth, shown in Australia/Perth.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 20 Jan 1913, 9:18 am GMT+8 | 21 Jan 1913, 6:32 am GMT+8 | 21 hr 14 min | Yes |
| 2 | 18 Feb 1913, 9:00 pm GMT+8 | 19 Feb 1913, 5:35 pm GMT+8 | 20 hr 36 min | Yes |
| 3 | 20 Mar 1913, 6:28 am GMT+8 | 21 Mar 1913, 3:01 am GMT+8 | 20 hr 33 min | Yes |
| 4 | 18 Apr 1913, 2:21 pm GMT+8 | 19 Apr 1913, 11:19 am GMT+8 | 20 hr 58 min | Yes |
| 5 | 17 May 1913, 9:23 pm GMT+8 | 18 May 1913, 7:07 pm GMT+8 | 21 hr 44 min | Yes |
| 6 | 16 Jun 1913, 4:31 am GMT+8 | 17 Jun 1913, 3:17 am GMT+8 | 22 hr 46 min | Yes |
| 7 | 15 Jul 1913, 12:52 pm GMT+8 | 16 Jul 1913, 12:50 pm GMT+8 | 23 hr 58 min | Yes |
| 8 | 13 Aug 1913, 11:33 pm GMT+8 | 15 Aug 1913, 12:47 am GMT+8 | 25 hr 14 min | Yes |
| 9 | 12 Sept 1913, 1:25 pm GMT+8 | 13 Sept 1913, 3:40 pm GMT+8 | 26 hr 15 min | Yes |
| 10 | 12 Oct 1913, 6:30 am GMT+8 | 13 Oct 1913, 9:10 am GMT+8 | 26 hr 40 min | Yes |
| 11 | 11 Nov 1913, 1:48 am GMT+8 | 12 Nov 1913, 4:03 am GMT+8 | 26 hr 15 min | Yes |
| 12 | 10 Dec 1913, 9:34 pm GMT+8 | 11 Dec 1913, 10:39 pm GMT+8 | 25 hr 5 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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