Trayodashi (त्रयोदशी) dates and timings in Perth for 1963
Verified astronomical start and end times for lunar day 13 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 | 7 Jan 1963, 11:25 am GMT+8 | 8 Jan 1963, 9:38 am GMT+8 | 22 hr 13 min | Yes |
| 2 | 5 Feb 1963, 10:44 pm GMT+8 | 6 Feb 1963, 10:21 pm GMT+8 | 23 hr 37 min | Yes |
| 3 | 7 Mar 1963, 11:51 am GMT+8 | 8 Mar 1963, 12:49 pm GMT+8 | 24 hr 58 min | Yes |
| 4 | 6 Apr 1963, 2:32 am GMT+8 | 7 Apr 1963, 4:28 am GMT+8 | 25 hr 56 min | Yes |
| 5 | 5 May 1963, 6:13 pm GMT+8 | 6 May 1963, 8:36 pm GMT+8 | 26 hr 23 min | Yes |
| 6 | 4 Jun 1963, 10:19 am GMT+8 | 5 Jun 1963, 12:37 pm GMT+8 | 26 hr 18 min | Yes |
| 7 | 4 Jul 1963, 2:19 am GMT+8 | 5 Jul 1963, 3:59 am GMT+8 | 25 hr 39 min | Yes |
| 8 | 2 Aug 1963, 5:42 pm GMT+8 | 3 Aug 1963, 6:15 pm GMT+8 | 24 hr 33 min | Yes |
| 9 | 1 Sept 1963, 7:59 am GMT+8 | 2 Sept 1963, 7:09 am GMT+8 | 23 hr 11 min | Yes |
| 10 | 30 Sept 1963, 8:52 pm GMT+8 | 1 Oct 1963, 6:43 pm GMT+8 | 21 hr 51 min | Yes |
| 11 | 30 Oct 1963, 8:25 am GMT+8 | 31 Oct 1963, 5:18 am GMT+8 | 20 hr 52 min | Yes |
| 12 | 28 Nov 1963, 6:59 pm GMT+8 | 29 Nov 1963, 3:28 pm GMT+8 | 20 hr 28 min | Yes |
| 13 | 28 Dec 1963, 4:59 am GMT+8 | 29 Dec 1963, 1:39 am GMT+8 | 20 hr 41 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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