Trayodashi (त्रयोदशी) dates and timings in Brisbane for 1990
Verified astronomical start and end times for lunar day 13 in Brisbane, shown in Australia/Brisbane.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 8 Jan 1990, 10:48 pm GMT+11 | 9 Jan 1990, 8:15 pm GMT+11 | 21 hr 27 min | Yes |
| 2 | 7 Feb 1990, 8:59 am GMT+11 | 8 Feb 1990, 7:41 am GMT+11 | 22 hr 42 min | Yes |
| 3 | 8 Mar 1990, 7:29 pm GMT+10 | 9 Mar 1990, 7:34 pm GMT+10 | 24 hr 5 min | Yes |
| 4 | 7 Apr 1990, 8:29 am GMT+10 | 8 Apr 1990, 9:46 am GMT+10 | 25 hr 18 min | Yes |
| 5 | 6 May 1990, 10:46 pm GMT+10 | 8 May 1990, 12:52 am GMT+10 | 26 hr 6 min | Yes |
| 6 | 5 Jun 1990, 2:01 pm GMT+10 | 6 Jun 1990, 4:25 pm GMT+10 | 26 hr 24 min | Yes |
| 7 | 5 Jul 1990, 5:50 am GMT+10 | 6 Jul 1990, 7:59 am GMT+10 | 26 hr 9 min | Yes |
| 8 | 3 Aug 1990, 9:47 pm GMT+10 | 4 Aug 1990, 11:09 pm GMT+10 | 25 hr 22 min | Yes |
| 9 | 2 Sept 1990, 1:18 pm GMT+10 | 3 Sept 1990, 1:26 pm GMT+10 | 24 hr 8 min | Yes |
| 10 | 2 Oct 1990, 3:48 am GMT+10 | 3 Oct 1990, 2:30 am GMT+10 | 22 hr 43 min | Yes |
| 11 | 31 Oct 1990, 5:56 pm GMT+11 | 1 Nov 1990, 3:23 pm GMT+11 | 21 hr 27 min | Yes |
| 12 | 30 Nov 1990, 5:42 am GMT+11 | 1 Dec 1990, 2:23 am GMT+11 | 20 hr 40 min | Yes |
| 13 | 29 Dec 1990, 4:23 pm GMT+11 | 30 Dec 1990, 12:53 pm GMT+11 | 20 hr 30 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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