Tritiya (तृतीया) dates and timings in Perth for 2011
Verified astronomical start and end times for lunar day 18 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 | 21 Jan 2011, 11:27 pm GMT+8 | 22 Jan 2011, 8:18 pm GMT+8 | 20 hr 52 min | Yes |
| 2 | 20 Feb 2011, 9:09 am GMT+8 | 21 Feb 2011, 5:34 am GMT+8 | 20 hr 25 min | Yes |
| 3 | 21 Mar 2011, 6:26 pm GMT+8 | 22 Mar 2011, 3:03 pm GMT+8 | 20 hr 37 min | Yes |
| 4 | 20 Apr 2011, 3:58 am GMT+8 | 21 Apr 2011, 1:19 am GMT+8 | 21 hr 21 min | Yes |
| 5 | 19 May 2011, 2:19 pm GMT+8 | 20 May 2011, 12:47 pm GMT+8 | 22 hr 28 min | Yes |
| 6 | 18 Jun 2011, 1:53 am GMT+8 | 19 Jun 2011, 1:37 am GMT+8 | 23 hr 44 min | Yes |
| 7 | 17 Jul 2011, 2:56 pm GMT+8 | 18 Jul 2011, 3:52 pm GMT+8 | 24 hr 56 min | Yes |
| 8 | 16 Aug 2011, 5:36 am GMT+8 | 17 Aug 2011, 7:31 am GMT+8 | 25 hr 55 min | Yes |
| 9 | 14 Sept 2011, 9:50 pm GMT+8 | 16 Sept 2011, 12:20 am GMT+8 | 26 hr 30 min | Yes |
| 10 | 14 Oct 2011, 3:09 pm GMT+8 | 15 Oct 2011, 5:35 pm GMT+8 | 26 hr 26 min | Yes |
| 11 | 13 Nov 2011, 8:30 am GMT+8 | 14 Nov 2011, 10:09 am GMT+8 | 25 hr 38 min | Yes |
| 12 | 13 Dec 2011, 12:33 am GMT+8 | 14 Dec 2011, 12:51 am GMT+8 | 24 hr 18 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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