Trayodashi (त्रयोदशी) dates and timings in Perth for 1983
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 | 26 Jan 1983, 5:13 pm GMT+8 | 27 Jan 1983, 1:51 pm GMT+8 | 20 hr 38 min | Yes |
| 2 | 25 Feb 1983, 3:08 am GMT+8 | 25 Feb 1983, 11:48 pm GMT+8 | 20 hr 40 min | No |
| 3 | 26 Mar 1983, 11:30 am GMT+8 | 27 Mar 1983, 8:40 am GMT+8 | 21 hr 9 min | Yes |
| 4 | 24 Apr 1983, 7:09 pm GMT+8 | 25 Apr 1983, 5:15 pm GMT+8 | 22 hr 6 min | Yes |
| 5 | 24 May 1983, 3:15 am GMT+8 | 25 May 1983, 2:38 am GMT+8 | 23 hr 23 min | Yes |
| 6 | 22 Jun 1983, 12:58 pm GMT+8 | 23 Jun 1983, 1:43 pm GMT+8 | 24 hr 45 min | Yes |
| 7 | 22 Jul 1983, 1:03 am GMT+8 | 23 Jul 1983, 2:56 am GMT+8 | 25 hr 53 min | Yes |
| 8 | 20 Aug 1983, 3:39 pm GMT+8 | 21 Aug 1983, 6:06 pm GMT+8 | 26 hr 28 min | Yes |
| 9 | 19 Sept 1983, 8:18 am GMT+8 | 20 Sept 1983, 10:40 am GMT+8 | 26 hr 22 min | Yes |
| 10 | 19 Oct 1983, 2:15 am GMT+8 | 20 Oct 1983, 3:55 am GMT+8 | 25 hr 40 min | Yes |
| 11 | 17 Nov 1983, 9:34 pm GMT+9 | 18 Nov 1983, 10:07 pm GMT+9 | 24 hr 33 min | Yes |
| 12 | 17 Dec 1983, 3:12 pm GMT+9 | 18 Dec 1983, 2:25 pm GMT+9 | 23 hr 13 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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