Trayodashi (त्रयोदशी) dates and timings in Perth for 1971
Verified astronomical start and end times for lunar day 28 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 | 24 Jan 1971, 2:26 pm GMT+8 | 25 Jan 1971, 12:26 pm GMT+8 | 22 hr 0 min | Yes |
| 2 | 23 Feb 1971, 3:38 am GMT+8 | 24 Feb 1971, 12:44 am GMT+8 | 21 hr 6 min | Yes |
| 3 | 24 Mar 1971, 2:12 pm GMT+8 | 25 Mar 1971, 10:50 am GMT+8 | 20 hr 38 min | Yes |
| 4 | 22 Apr 1971, 10:23 pm GMT+8 | 23 Apr 1971, 6:59 pm GMT+8 | 20 hr 36 min | Yes |
| 5 | 22 May 1971, 4:56 am GMT+8 | 23 May 1971, 1:58 am GMT+8 | 21 hr 3 min | Yes |
| 6 | 20 Jun 1971, 11:03 am GMT+8 | 21 Jun 1971, 9:00 am GMT+8 | 21 hr 57 min | Yes |
| 7 | 19 Jul 1971, 6:11 pm GMT+8 | 20 Jul 1971, 5:24 pm GMT+8 | 23 hr 13 min | Yes |
| 8 | 18 Aug 1971, 3:40 am GMT+8 | 19 Aug 1971, 4:18 am GMT+8 | 24 hr 38 min | Yes |
| 9 | 16 Sept 1971, 4:22 pm GMT+8 | 17 Sept 1971, 6:13 pm GMT+8 | 25 hr 51 min | Yes |
| 10 | 16 Oct 1971, 8:24 am GMT+8 | 17 Oct 1971, 10:55 am GMT+8 | 26 hr 31 min | Yes |
| 11 | 15 Nov 1971, 3:02 am GMT+8 | 16 Nov 1971, 5:32 am GMT+8 | 26 hr 29 min | Yes |
| 12 | 14 Dec 1971, 10:58 pm GMT+8 | 16 Dec 1971, 12:46 am GMT+8 | 25 hr 49 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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