Trayodashi (त्रयोदशी) dates and timings in Perth for 1979
Verified astronomical start and end times for lunar day 28 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 1979, 1:02 am GMT+8 | 26 Jan 1979, 9:46 pm GMT+8 | 20 hr 44 min | No |
| 2 | 24 Feb 1979, 11:28 am GMT+8 | 25 Feb 1979, 8:00 am GMT+8 | 20 hr 32 min | Yes |
| 3 | 25 Mar 1979, 8:14 pm GMT+8 | 26 Mar 1979, 5:06 pm GMT+8 | 20 hr 52 min | Yes |
| 4 | 24 Apr 1979, 3:56 am GMT+8 | 25 Apr 1979, 1:30 am GMT+8 | 21 hr 34 min | Yes |
| 5 | 23 May 1979, 11:21 am GMT+8 | 24 May 1979, 9:54 am GMT+8 | 22 hr 33 min | Yes |
| 6 | 21 Jun 1979, 7:31 pm GMT+8 | 22 Jun 1979, 7:14 pm GMT+8 | 23 hr 43 min | Yes |
| 7 | 21 Jul 1979, 5:29 am GMT+8 | 22 Jul 1979, 6:28 am GMT+8 | 24 hr 58 min | Yes |
| 8 | 19 Aug 1979, 6:12 pm GMT+8 | 20 Aug 1979, 8:16 pm GMT+8 | 26 hr 4 min | Yes |
| 9 | 18 Sept 1979, 9:58 am GMT+8 | 19 Sept 1979, 12:37 pm GMT+8 | 26 hr 39 min | Yes |
| 10 | 18 Oct 1979, 4:12 am GMT+8 | 19 Oct 1979, 6:38 am GMT+8 | 26 hr 26 min | Yes |
| 11 | 16 Nov 1979, 11:28 pm GMT+8 | 18 Nov 1979, 12:55 am GMT+8 | 25 hr 27 min | Yes |
| 12 | 16 Dec 1979, 6:09 pm GMT+8 | 17 Dec 1979, 6:11 pm GMT+8 | 24 hr 2 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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