Trayodashi (त्रयोदशी) dates and timings in Perth for 1918
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 | 10 Jan 1918, 11:46 am GMT+8 | 11 Jan 1918, 10:39 am GMT+8 | 22 hr 53 min | Yes |
| 2 | 9 Feb 1918, 2:46 am GMT+8 | 10 Feb 1918, 12:23 am GMT+8 | 21 hr 38 min | Yes |
| 3 | 10 Mar 1918, 2:42 pm GMT+8 | 11 Mar 1918, 11:26 am GMT+8 | 20 hr 44 min | Yes |
| 4 | 8 Apr 1918, 11:44 pm GMT+8 | 9 Apr 1918, 8:08 pm GMT+8 | 20 hr 24 min | Yes |
| 5 | 8 May 1918, 6:43 am GMT+8 | 9 May 1918, 3:23 am GMT+8 | 20 hr 40 min | Yes |
| 6 | 6 Jun 1918, 12:53 pm GMT+8 | 7 Jun 1918, 10:20 am GMT+8 | 21 hr 27 min | Yes |
| 7 | 5 Jul 1918, 7:32 pm GMT+8 | 6 Jul 1918, 6:06 pm GMT+8 | 22 hr 34 min | Yes |
| 8 | 4 Aug 1918, 3:47 am GMT+8 | 5 Aug 1918, 3:37 am GMT+8 | 23 hr 50 min | Yes |
| 9 | 2 Sept 1918, 2:33 pm GMT+8 | 3 Sept 1918, 3:35 pm GMT+8 | 25 hr 2 min | Yes |
| 10 | 2 Oct 1918, 4:23 am GMT+8 | 3 Oct 1918, 6:24 am GMT+8 | 26 hr 1 min | Yes |
| 11 | 31 Oct 1918, 9:24 pm GMT+8 | 1 Nov 1918, 11:57 pm GMT+8 | 26 hr 33 min | Yes |
| 12 | 30 Nov 1918, 4:57 pm GMT+8 | 1 Dec 1918, 7:23 pm GMT+8 | 26 hr 26 min | Yes |
| 13 | 30 Dec 1918, 1:26 pm GMT+8 | 31 Dec 1918, 3:00 pm GMT+8 | 25 hr 34 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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