Tritiya (तृतीया) dates and timings in Perth for 1931
Verified astronomical start and end times for lunar day 3 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 1931, 6:40 am GMT+8 | 22 Jan 1931, 9:12 am GMT+8 | 26 hr 32 min | Yes |
| 2 | 20 Feb 1931, 2:27 am GMT+8 | 21 Feb 1931, 5:08 am GMT+8 | 26 hr 41 min | Yes |
| 3 | 21 Mar 1931, 8:39 pm GMT+8 | 22 Mar 1931, 10:38 pm GMT+8 | 25 hr 59 min | Yes |
| 4 | 20 Apr 1931, 11:47 am GMT+8 | 21 Apr 1931, 12:29 pm GMT+8 | 24 hr 42 min | Yes |
| 5 | 19 May 1931, 11:24 pm GMT+8 | 20 May 1931, 10:41 pm GMT+8 | 23 hr 17 min | Yes |
| 6 | 18 Jun 1931, 8:07 am GMT+8 | 19 Jun 1931, 6:11 am GMT+8 | 22 hr 4 min | Yes |
| 7 | 17 Jul 1931, 3:08 pm GMT+8 | 18 Jul 1931, 12:20 pm GMT+8 | 21 hr 11 min | Yes |
| 8 | 15 Aug 1931, 9:45 pm GMT+8 | 16 Aug 1931, 6:27 pm GMT+8 | 20 hr 42 min | Yes |
| 9 | 14 Sept 1931, 5:06 am GMT+8 | 15 Sept 1931, 1:42 am GMT+8 | 20 hr 36 min | Yes |
| 10 | 13 Oct 1931, 1:58 pm GMT+8 | 14 Oct 1931, 10:54 am GMT+8 | 20 hr 56 min | Yes |
| 11 | 12 Nov 1931, 12:57 am GMT+8 | 12 Nov 1931, 10:43 pm GMT+8 | 21 hr 45 min | No |
| 12 | 11 Dec 1931, 2:28 pm GMT+8 | 12 Dec 1931, 1:30 pm GMT+8 | 23 hr 2 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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