Trayodashi (त्रयोदशी) dates and timings in Perth for 1990
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 | 24 Jan 1990, 2:40 am GMT+8 | 25 Jan 1990, 3:28 am GMT+8 | 24 hr 48 min | Yes |
| 2 | 22 Feb 1990, 8:32 pm GMT+8 | 23 Feb 1990, 7:57 pm GMT+8 | 23 hr 25 min | Yes |
| 3 | 24 Mar 1990, 11:21 am GMT+8 | 25 Mar 1990, 9:24 am GMT+8 | 22 hr 4 min | Yes |
| 4 | 22 Apr 1990, 10:43 pm GMT+8 | 23 Apr 1990, 7:43 pm GMT+8 | 21 hr 0 min | Yes |
| 5 | 22 May 1990, 7:04 am GMT+8 | 23 May 1990, 3:31 am GMT+8 | 20 hr 27 min | Yes |
| 6 | 20 Jun 1990, 1:28 pm GMT+8 | 21 Jun 1990, 9:57 am GMT+8 | 20 hr 29 min | Yes |
| 7 | 19 Jul 1990, 7:12 pm GMT+8 | 20 Jul 1990, 4:15 pm GMT+8 | 21 hr 3 min | Yes |
| 8 | 18 Aug 1990, 1:37 am GMT+8 | 18 Aug 1990, 11:39 pm GMT+8 | 22 hr 2 min | No |
| 9 | 16 Sept 1990, 9:52 am GMT+8 | 17 Sept 1990, 9:07 am GMT+8 | 23 hr 15 min | Yes |
| 10 | 15 Oct 1990, 8:51 pm GMT+8 | 16 Oct 1990, 9:23 pm GMT+8 | 24 hr 32 min | Yes |
| 11 | 14 Nov 1990, 11:06 am GMT+8 | 15 Nov 1990, 12:48 pm GMT+8 | 25 hr 41 min | Yes |
| 12 | 14 Dec 1990, 4:37 am GMT+8 | 15 Dec 1990, 7:06 am GMT+8 | 26 hr 29 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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