Trayodashi (त्रयोदशी) dates and timings in Perth for 2001
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 | 7 Jan 2001, 2:11 pm GMT+8 | 8 Jan 2001, 11:19 am GMT+8 | 21 hr 8 min | Yes |
| 2 | 6 Feb 2001, 1:59 am GMT+8 | 6 Feb 2001, 10:38 pm GMT+8 | 20 hr 39 min | No |
| 3 | 7 Mar 2001, 11:44 am GMT+8 | 8 Mar 2001, 8:21 am GMT+8 | 20 hr 37 min | Yes |
| 4 | 5 Apr 2001, 7:46 pm GMT+8 | 6 Apr 2001, 4:49 pm GMT+8 | 21 hr 4 min | Yes |
| 5 | 5 May 2001, 2:59 am GMT+8 | 6 May 2001, 12:56 am GMT+8 | 21 hr 58 min | Yes |
| 6 | 3 Jun 2001, 10:38 am GMT+8 | 4 Jun 2001, 9:50 am GMT+8 | 23 hr 13 min | Yes |
| 7 | 2 Jul 2001, 7:57 pm GMT+8 | 3 Jul 2001, 8:32 pm GMT+8 | 24 hr 36 min | Yes |
| 8 | 1 Aug 2001, 7:47 am GMT+8 | 2 Aug 2001, 9:33 am GMT+8 | 25 hr 46 min | Yes |
| 9 | 30 Aug 2001, 10:22 pm GMT+8 | 1 Sept 2001, 12:48 am GMT+8 | 26 hr 26 min | Yes |
| 10 | 29 Sept 2001, 3:16 pm GMT+8 | 30 Sept 2001, 5:41 pm GMT+8 | 26 hr 25 min | Yes |
| 11 | 29 Oct 2001, 9:39 am GMT+8 | 30 Oct 2001, 11:26 am GMT+8 | 25 hr 47 min | Yes |
| 12 | 28 Nov 2001, 4:27 am GMT+8 | 29 Nov 2001, 5:08 am GMT+8 | 24 hr 42 min | Yes |
| 13 | 27 Dec 2001, 10:28 pm GMT+8 | 28 Dec 2001, 9:49 pm GMT+8 | 23 hr 21 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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