Tritiya (तृतीया) dates and timings in Perth for 1971
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 | 14 Jan 1971, 12:35 am GMT+8 | 15 Jan 1971, 2:52 am GMT+8 | 26 hr 17 min | Yes |
| 2 | 12 Feb 1971, 8:43 pm GMT+8 | 13 Feb 1971, 11:23 pm GMT+8 | 26 hr 41 min | Yes |
| 3 | 14 Mar 1971, 3:36 pm GMT+8 | 15 Mar 1971, 5:50 pm GMT+8 | 26 hr 14 min | Yes |
| 4 | 13 Apr 1971, 7:44 am GMT+8 | 14 Apr 1971, 8:58 am GMT+8 | 25 hr 14 min | Yes |
| 5 | 12 May 1971, 8:38 pm GMT+8 | 13 May 1971, 8:40 pm GMT+8 | 24 hr 2 min | Yes |
| 6 | 11 Jun 1971, 6:44 am GMT+8 | 12 Jun 1971, 5:33 am GMT+8 | 22 hr 49 min | Yes |
| 7 | 10 Jul 1971, 2:50 pm GMT+8 | 11 Jul 1971, 12:33 pm GMT+8 | 21 hr 44 min | Yes |
| 8 | 8 Aug 1971, 9:51 pm GMT+8 | 9 Aug 1971, 6:44 pm GMT+8 | 20 hr 53 min | Yes |
| 9 | 7 Sept 1971, 4:45 am GMT+8 | 8 Sept 1971, 1:12 am GMT+8 | 20 hr 26 min | Yes |
| 10 | 6 Oct 1971, 12:35 pm GMT+8 | 7 Oct 1971, 9:07 am GMT+8 | 20 hr 32 min | Yes |
| 11 | 4 Nov 1971, 10:21 pm GMT+8 | 5 Nov 1971, 7:35 pm GMT+8 | 21 hr 13 min | Yes |
| 12 | 4 Dec 1971, 10:49 am GMT+8 | 5 Dec 1971, 9:16 am GMT+8 | 22 hr 27 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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