Trayodashi (त्रयोदशी) dates and timings in Perth for 1918
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 | 24 Jan 1918, 8:01 am GMT+8 | 25 Jan 1918, 8:42 am GMT+8 | 24 hr 41 min | Yes |
| 2 | 22 Feb 1918, 11:23 pm GMT+8 | 24 Feb 1918, 1:12 am GMT+8 | 25 hr 49 min | Yes |
| 3 | 24 Mar 1918, 4:13 pm GMT+8 | 25 Mar 1918, 6:38 pm GMT+8 | 26 hr 24 min | Yes |
| 4 | 23 Apr 1918, 9:30 am GMT+8 | 24 Apr 1918, 11:53 am GMT+8 | 26 hr 23 min | Yes |
| 5 | 23 May 1918, 2:20 am GMT+8 | 24 May 1918, 4:09 am GMT+8 | 25 hr 49 min | Yes |
| 6 | 21 Jun 1918, 6:02 pm GMT+8 | 22 Jun 1918, 6:49 pm GMT+8 | 24 hr 47 min | Yes |
| 7 | 21 Jul 1918, 8:08 am GMT+8 | 22 Jul 1918, 7:36 am GMT+8 | 23 hr 27 min | Yes |
| 8 | 19 Aug 1918, 8:27 pm GMT+8 | 20 Aug 1918, 6:34 pm GMT+8 | 22 hr 7 min | Yes |
| 9 | 18 Sept 1918, 7:09 am GMT+8 | 19 Sept 1918, 4:12 am GMT+8 | 21 hr 3 min | Yes |
| 10 | 17 Oct 1918, 4:46 pm GMT+8 | 18 Oct 1918, 1:16 pm GMT+8 | 20 hr 29 min | Yes |
| 11 | 16 Nov 1918, 2:00 am GMT+8 | 16 Nov 1918, 10:32 pm GMT+8 | 20 hr 32 min | No |
| 12 | 15 Dec 1918, 11:26 am GMT+8 | 16 Dec 1918, 8:35 am GMT+8 | 21 hr 8 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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