Tritiya (तृतीया) dates and timings in Perth for 1957
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 | 18 Jan 1957, 6:44 am GMT+8 | 19 Jan 1957, 3:09 am GMT+8 | 20 hr 25 min | Yes |
| 2 | 16 Feb 1957, 5:04 pm GMT+8 | 17 Feb 1957, 1:50 pm GMT+8 | 20 hr 47 min | Yes |
| 3 | 18 Mar 1957, 4:07 am GMT+8 | 19 Mar 1957, 1:48 am GMT+8 | 21 hr 41 min | Yes |
| 4 | 16 Apr 1957, 4:10 pm GMT+8 | 17 Apr 1957, 3:05 pm GMT+8 | 22 hr 56 min | Yes |
| 5 | 16 May 1957, 5:14 am GMT+8 | 17 May 1957, 5:28 am GMT+8 | 24 hr 13 min | Yes |
| 6 | 14 Jun 1957, 7:16 pm GMT+8 | 15 Jun 1957, 8:38 pm GMT+8 | 25 hr 21 min | Yes |
| 7 | 14 Jul 1957, 10:10 am GMT+8 | 15 Jul 1957, 12:19 pm GMT+8 | 26 hr 9 min | Yes |
| 8 | 13 Aug 1957, 1:46 am GMT+8 | 14 Aug 1957, 4:14 am GMT+8 | 26 hr 28 min | Yes |
| 9 | 11 Sept 1957, 5:42 pm GMT+8 | 12 Sept 1957, 7:52 pm GMT+8 | 26 hr 10 min | Yes |
| 10 | 11 Oct 1957, 9:15 am GMT+8 | 12 Oct 1957, 10:29 am GMT+8 | 25 hr 14 min | Yes |
| 11 | 9 Nov 1957, 11:37 pm GMT+8 | 10 Nov 1957, 11:28 pm GMT+8 | 23 hr 51 min | Yes |
| 12 | 9 Dec 1957, 12:16 pm GMT+8 | 10 Dec 1957, 10:42 am GMT+8 | 22 hr 26 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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