Trayodashi (त्रयोदशी) dates and timings in Perth for 2100
Verified astronomical start and end times for lunar day 13 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 | 23 Jan 2100, 2:31 pm GMT+8 | 24 Jan 2100, 1:53 pm GMT+8 | 23 hr 22 min | Yes |
| 2 | 22 Feb 2100, 6:06 am GMT+8 | 23 Feb 2100, 4:13 am GMT+8 | 22 hr 7 min | Yes |
| 3 | 23 Mar 2100, 6:49 pm GMT+8 | 24 Mar 2100, 3:59 pm GMT+8 | 21 hr 10 min | Yes |
| 4 | 22 Apr 2100, 4:41 am GMT+8 | 23 Apr 2100, 1:18 am GMT+8 | 20 hr 37 min | Yes |
| 5 | 21 May 2100, 12:09 pm GMT+8 | 22 May 2100, 8:39 am GMT+8 | 20 hr 31 min | Yes |
| 6 | 19 Jun 2100, 6:08 pm GMT+8 | 20 Jun 2100, 3:01 pm GMT+8 | 20 hr 54 min | Yes |
| 7 | 18 Jul 2100, 11:57 pm GMT+8 | 19 Jul 2100, 9:43 pm GMT+8 | 21 hr 46 min | Yes |
| 8 | 17 Aug 2100, 7:05 am GMT+8 | 18 Aug 2100, 6:06 am GMT+8 | 23 hr 2 min | Yes |
| 9 | 15 Sept 2100, 4:52 pm GMT+8 | 16 Sept 2100, 5:19 pm GMT+8 | 24 hr 28 min | Yes |
| 10 | 15 Oct 2100, 6:08 am GMT+8 | 16 Oct 2100, 7:51 am GMT+8 | 25 hr 43 min | Yes |
| 11 | 13 Nov 2100, 10:51 pm GMT+8 | 15 Nov 2100, 1:19 am GMT+8 | 26 hr 27 min | Yes |
| 12 | 13 Dec 2100, 6:08 pm GMT+8 | 14 Dec 2100, 8:38 pm GMT+8 | 26 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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