Trayodashi (त्रयोदशी) dates and timings in Perth for 2018
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 | 29 Jan 2018, 7:48 am GMT+8 | 30 Jan 2018, 4:23 am GMT+8 | 20 hr 35 min | Yes |
| 2 | 27 Feb 2018, 5:09 pm GMT+8 | 28 Feb 2018, 2:16 pm GMT+8 | 21 hr 7 min | Yes |
| 3 | 29 Mar 2018, 1:53 am GMT+8 | 29 Mar 2018, 11:52 pm GMT+8 | 21 hr 59 min | No |
| 4 | 27 Apr 2018, 10:37 am GMT+8 | 28 Apr 2018, 9:42 am GMT+8 | 23 hr 5 min | Yes |
| 5 | 26 May 2018, 8:10 pm GMT+8 | 27 May 2018, 8:27 pm GMT+8 | 24 hr 17 min | Yes |
| 6 | 25 Jun 2018, 7:24 am GMT+8 | 26 Jun 2018, 8:52 am GMT+8 | 25 hr 28 min | Yes |
| 7 | 24 Jul 2018, 8:55 pm GMT+8 | 25 Jul 2018, 11:15 pm GMT+8 | 26 hr 20 min | Yes |
| 8 | 23 Aug 2018, 12:45 pm GMT+8 | 24 Aug 2018, 3:20 pm GMT+8 | 26 hr 35 min | Yes |
| 9 | 22 Sept 2018, 6:11 am GMT+8 | 23 Sept 2018, 8:13 am GMT+8 | 26 hr 3 min | Yes |
| 10 | 22 Oct 2018, 12:01 am GMT+8 | 23 Oct 2018, 12:53 am GMT+8 | 24 hr 52 min | Yes |
| 11 | 20 Nov 2018, 5:10 pm GMT+8 | 21 Nov 2018, 4:36 pm GMT+8 | 23 hr 26 min | Yes |
| 12 | 20 Dec 2018, 8:56 am GMT+8 | 21 Dec 2018, 7:04 am GMT+8 | 22 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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