Trayodashi (त्रयोदशी) dates and timings in Auckland for 1981
Verified astronomical start and end times for lunar day 13 in Auckland, shown in Pacific/Auckland.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 18 Jan 1981, 1:19 am GMT+13 | 18 Jan 1981, 11:25 pm GMT+13 | 22 hr 6 min | No |
| 2 | 16 Feb 1981, 12:18 pm GMT+13 | 17 Feb 1981, 11:46 am GMT+13 | 23 hr 28 min | Yes |
| 3 | 17 Mar 1981, 11:51 pm GMT+12 | 19 Mar 1981, 12:39 am GMT+12 | 24 hr 49 min | Yes |
| 4 | 16 Apr 1981, 1:51 pm GMT+12 | 17 Apr 1981, 3:40 pm GMT+12 | 25 hr 49 min | Yes |
| 5 | 16 May 1981, 4:56 am GMT+12 | 17 May 1981, 7:17 am GMT+12 | 26 hr 20 min | Yes |
| 6 | 14 Jun 1981, 8:41 pm GMT+12 | 15 Jun 1981, 11:01 pm GMT+12 | 26 hr 20 min | Yes |
| 7 | 14 Jul 1981, 12:38 pm GMT+12 | 15 Jul 1981, 2:24 pm GMT+12 | 25 hr 46 min | Yes |
| 8 | 13 Aug 1981, 4:17 am GMT+12 | 14 Aug 1981, 5:00 am GMT+12 | 24 hr 43 min | Yes |
| 9 | 11 Sept 1981, 7:05 pm GMT+12 | 12 Sept 1981, 6:25 pm GMT+12 | 23 hr 21 min | Yes |
| 10 | 11 Oct 1981, 8:37 am GMT+12 | 12 Oct 1981, 6:35 am GMT+12 | 21 hr 58 min | Yes |
| 11 | 9 Nov 1981, 9:46 pm GMT+13 | 10 Nov 1981, 6:43 pm GMT+13 | 20 hr 57 min | Yes |
| 12 | 9 Dec 1981, 8:46 am GMT+13 | 10 Dec 1981, 5:16 am GMT+13 | 20 hr 30 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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