Trayodashi (त्रयोदशी) dates and timings in Perth for 1901
Verified astronomical start and end times for lunar day 13 in Perth, shown in Australia/Perth.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 2 Jan 1901, 12:39 pm GMT+8 | 3 Jan 1901, 10:53 am GMT+8 | 22 hr 14 min | Yes |
| 2 | 1 Feb 1901, 12:00 am GMT+8 | 1 Feb 1901, 11:28 pm GMT+8 | 23 hr 28 min | Yes |
| 3 | 2 Mar 1901, 12:46 pm GMT+8 | 3 Mar 1901, 1:29 pm GMT+8 | 24 hr 43 min | Yes |
| 4 | 1 Apr 1901, 3:03 am GMT+8 | 2 Apr 1901, 4:51 am GMT+8 | 25 hr 48 min | Yes |
| 5 | 30 Apr 1901, 6:43 pm GMT+8 | 1 May 1901, 9:11 pm GMT+8 | 26 hr 28 min | Yes |
| 6 | 30 May 1901, 11:12 am GMT+8 | 31 May 1901, 1:41 pm GMT+8 | 26 hr 29 min | Yes |
| 7 | 29 Jun 1901, 3:34 am GMT+8 | 30 Jun 1901, 5:20 am GMT+8 | 25 hr 46 min | Yes |
| 8 | 28 Jul 1901, 6:57 pm GMT+8 | 29 Jul 1901, 7:27 pm GMT+8 | 24 hr 31 min | Yes |
| 9 | 27 Aug 1901, 8:53 am GMT+8 | 28 Aug 1901, 7:58 am GMT+8 | 23 hr 6 min | Yes |
| 10 | 25 Sept 1901, 9:28 pm GMT+8 | 26 Sept 1901, 7:20 pm GMT+8 | 21 hr 52 min | Yes |
| 11 | 25 Oct 1901, 9:05 am GMT+8 | 26 Oct 1901, 6:07 am GMT+8 | 21 hr 2 min | Yes |
| 12 | 23 Nov 1901, 8:01 pm GMT+8 | 24 Nov 1901, 4:40 pm GMT+8 | 20 hr 38 min | Yes |
| 13 | 23 Dec 1901, 6:21 am GMT+8 | 24 Dec 1901, 3:03 am GMT+8 | 20 hr 42 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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