Trayodashi (त्रयोदशी) dates and timings in Perth for 2099
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 | 4 Jan 2099, 5:10 pm GMT+8 | 5 Jan 2099, 3:19 pm GMT+8 | 22 hr 9 min | Yes |
| 2 | 3 Feb 2099, 6:50 am GMT+8 | 4 Feb 2099, 3:54 am GMT+8 | 21 hr 4 min | Yes |
| 3 | 4 Mar 2099, 5:57 pm GMT+8 | 5 Mar 2099, 2:31 pm GMT+8 | 20 hr 34 min | Yes |
| 4 | 3 Apr 2099, 2:56 am GMT+8 | 3 Apr 2099, 11:33 pm GMT+8 | 20 hr 37 min | No |
| 5 | 2 May 2099, 10:26 am GMT+8 | 3 May 2099, 7:31 am GMT+8 | 21 hr 5 min | Yes |
| 6 | 31 May 2099, 5:14 pm GMT+8 | 1 Jun 2099, 3:07 pm GMT+8 | 21 hr 53 min | Yes |
| 7 | 30 Jun 2099, 12:22 am GMT+8 | 30 Jun 2099, 11:19 pm GMT+8 | 22 hr 57 min | No |
| 8 | 29 Jul 2099, 9:03 am GMT+8 | 30 Jul 2099, 9:15 am GMT+8 | 24 hr 12 min | Yes |
| 9 | 27 Aug 2099, 8:25 pm GMT+8 | 28 Aug 2099, 9:53 pm GMT+8 | 25 hr 28 min | Yes |
| 10 | 26 Sept 2099, 11:08 am GMT+8 | 27 Sept 2099, 1:34 pm GMT+8 | 26 hr 25 min | Yes |
| 11 | 26 Oct 2099, 5:01 am GMT+8 | 27 Oct 2099, 7:41 am GMT+8 | 26 hr 40 min | Yes |
| 12 | 25 Nov 2099, 12:43 am GMT+8 | 26 Nov 2099, 2:46 am GMT+8 | 26 hr 3 min | Yes |
| 13 | 24 Dec 2099, 8:25 pm GMT+8 | 25 Dec 2099, 9:13 pm GMT+8 | 24 hr 48 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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