Trayodashi (त्रयोदशी) dates and timings in Perth for 1999
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 | 14 Jan 1999, 8:54 pm GMT+8 | 15 Jan 1999, 10:22 pm GMT+8 | 25 hr 28 min | Yes |
| 2 | 13 Feb 1999, 3:54 pm GMT+8 | 14 Feb 1999, 4:06 pm GMT+8 | 24 hr 12 min | Yes |
| 3 | 15 Mar 1999, 8:18 am GMT+8 | 16 Mar 1999, 7:05 am GMT+8 | 22 hr 47 min | Yes |
| 4 | 13 Apr 1999, 9:19 pm GMT+8 | 14 Apr 1999, 6:51 pm GMT+8 | 21 hr 32 min | Yes |
| 5 | 13 May 1999, 7:01 am GMT+8 | 14 May 1999, 3:42 am GMT+8 | 20 hr 41 min | Yes |
| 6 | 11 Jun 1999, 2:13 pm GMT+8 | 12 Jun 1999, 10:36 am GMT+8 | 20 hr 23 min | Yes |
| 7 | 10 Jul 1999, 8:07 pm GMT+8 | 11 Jul 1999, 4:47 pm GMT+8 | 20 hr 40 min | Yes |
| 8 | 9 Aug 1999, 2:04 am GMT+8 | 9 Aug 1999, 11:31 pm GMT+8 | 21 hr 27 min | No |
| 9 | 7 Sept 1999, 9:19 am GMT+8 | 8 Sept 1999, 7:52 am GMT+8 | 22 hr 33 min | Yes |
| 10 | 6 Oct 1999, 6:54 pm GMT+8 | 7 Oct 1999, 6:44 pm GMT+8 | 23 hr 50 min | Yes |
| 11 | 5 Nov 1999, 7:33 am GMT+8 | 6 Nov 1999, 8:38 am GMT+8 | 25 hr 5 min | Yes |
| 12 | 4 Dec 1999, 11:30 pm GMT+8 | 6 Dec 1999, 1:37 am GMT+8 | 26 hr 7 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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