Tritiya (तृतीया) dates and timings in Perth for 1920
Verified astronomical start and end times for lunar day 18 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 | 7 Jan 1920, 10:58 pm GMT+8 | 8 Jan 1920, 8:39 pm GMT+8 | 21 hr 41 min | Yes |
| 2 | 6 Feb 1920, 12:46 pm GMT+8 | 7 Feb 1920, 11:45 am GMT+8 | 22 hr 59 min | Yes |
| 3 | 7 Mar 1920, 4:12 am GMT+8 | 8 Mar 1920, 4:42 am GMT+8 | 24 hr 30 min | Yes |
| 4 | 5 Apr 1920, 8:54 pm GMT+8 | 6 Apr 1920, 10:40 pm GMT+8 | 25 hr 47 min | Yes |
| 5 | 5 May 1920, 1:56 pm GMT+8 | 6 May 1920, 4:23 pm GMT+8 | 26 hr 27 min | Yes |
| 6 | 4 Jun 1920, 6:13 am GMT+8 | 5 Jun 1920, 8:36 am GMT+8 | 26 hr 23 min | Yes |
| 7 | 3 Jul 1920, 8:58 pm GMT+8 | 4 Jul 1920, 10:42 pm GMT+8 | 25 hr 45 min | Yes |
| 8 | 2 Aug 1920, 9:56 am GMT+8 | 3 Aug 1920, 10:41 am GMT+8 | 24 hr 45 min | Yes |
| 9 | 31 Aug 1920, 9:22 pm GMT+8 | 1 Sept 1920, 8:57 pm GMT+8 | 23 hr 36 min | Yes |
| 10 | 30 Sept 1920, 7:42 am GMT+8 | 1 Oct 1920, 6:06 am GMT+8 | 22 hr 24 min | Yes |
| 11 | 29 Oct 1920, 5:25 pm GMT+8 | 30 Oct 1920, 2:45 pm GMT+8 | 21 hr 20 min | Yes |
| 12 | 28 Nov 1920, 3:00 am GMT+8 | 28 Nov 1920, 11:36 pm GMT+8 | 20 hr 36 min | No |
| 13 | 27 Dec 1920, 12:56 pm GMT+8 | 28 Dec 1920, 9:22 am GMT+8 | 20 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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