Trayodashi (त्रयोदशी) dates and timings in Brisbane for 1991
Verified astronomical start and end times for lunar day 13 in Brisbane, shown in Australia/Brisbane.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 28 Jan 1991, 2:18 am GMT+11 | 28 Jan 1991, 11:11 pm GMT+11 | 20 hr 53 min | No |
| 2 | 26 Feb 1991, 11:44 am GMT+11 | 27 Feb 1991, 9:25 am GMT+11 | 21 hr 41 min | Yes |
| 3 | 27 Mar 1991, 8:06 pm GMT+10 | 28 Mar 1991, 6:49 pm GMT+10 | 22 hr 44 min | Yes |
| 4 | 26 Apr 1991, 5:58 am GMT+10 | 27 Apr 1991, 5:53 am GMT+10 | 23 hr 55 min | Yes |
| 5 | 25 May 1991, 5:04 pm GMT+10 | 26 May 1991, 6:11 pm GMT+10 | 25 hr 7 min | Yes |
| 6 | 24 Jun 1991, 5:59 am GMT+10 | 25 Jun 1991, 8:06 am GMT+10 | 26 hr 6 min | Yes |
| 7 | 23 Jul 1991, 8:56 pm GMT+10 | 24 Jul 1991, 11:30 pm GMT+10 | 26 hr 34 min | Yes |
| 8 | 22 Aug 1991, 1:26 pm GMT+10 | 23 Aug 1991, 3:43 pm GMT+10 | 26 hr 17 min | Yes |
| 9 | 21 Sept 1991, 6:32 am GMT+10 | 22 Sept 1991, 7:50 am GMT+10 | 25 hr 18 min | Yes |
| 10 | 20 Oct 1991, 11:16 pm GMT+10 | 21 Oct 1991, 11:11 pm GMT+10 | 23 hr 55 min | Yes |
| 11 | 19 Nov 1991, 3:57 pm GMT+11 | 20 Nov 1991, 2:30 pm GMT+11 | 22 hr 33 min | Yes |
| 12 | 19 Dec 1991, 6:17 am GMT+11 | 20 Dec 1991, 3:45 am GMT+11 | 21 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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