Trayodashi (त्रयोदशी) dates and timings in Perth for 1986
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 | 23 Jan 1986, 5:29 am GMT+8 | 24 Jan 1986, 7:03 am GMT+8 | 25 hr 34 min | Yes |
| 2 | 22 Feb 1986, 12:18 am GMT+8 | 23 Feb 1986, 12:29 am GMT+8 | 24 hr 11 min | Yes |
| 3 | 23 Mar 1986, 4:15 pm GMT+8 | 24 Mar 1986, 3:04 pm GMT+8 | 22 hr 49 min | Yes |
| 4 | 22 Apr 1986, 5:07 am GMT+8 | 23 Apr 1986, 2:49 am GMT+8 | 21 hr 42 min | Yes |
| 5 | 21 May 1986, 3:07 pm GMT+8 | 22 May 1986, 12:01 pm GMT+8 | 20 hr 54 min | Yes |
| 6 | 19 Jun 1986, 10:47 pm GMT+8 | 20 Jun 1986, 7:17 pm GMT+8 | 20 hr 30 min | Yes |
| 7 | 19 Jul 1986, 4:59 am GMT+8 | 20 Jul 1986, 1:33 am GMT+8 | 20 hr 34 min | Yes |
| 8 | 17 Aug 1986, 10:51 am GMT+8 | 18 Aug 1986, 8:00 am GMT+8 | 21 hr 8 min | Yes |
| 9 | 15 Sept 1986, 5:47 pm GMT+8 | 16 Sept 1986, 3:59 pm GMT+8 | 22 hr 12 min | Yes |
| 10 | 15 Oct 1986, 3:07 am GMT+8 | 16 Oct 1986, 2:45 am GMT+8 | 23 hr 37 min | Yes |
| 11 | 13 Nov 1986, 3:51 pm GMT+8 | 14 Nov 1986, 4:55 pm GMT+8 | 25 hr 4 min | Yes |
| 12 | 13 Dec 1986, 8:06 am GMT+8 | 14 Dec 1986, 10:14 am GMT+8 | 26 hr 9 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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