Amavasya (अमावस्या) dates and timings in Adelaide for 1981
Verified astronomical start and end times for lunar day 30 in Adelaide, shown in Australia/Adelaide.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 5 Jan 1981, 5:35 pm GMT+10:30 | 6 Jan 1981, 5:54 pm GMT+10:30 | 24 hr 18 min | Yes |
| 2 | 4 Feb 1981, 9:53 am GMT+10:30 | 5 Feb 1981, 8:43 am GMT+10:30 | 22 hr 51 min | Yes |
| 3 | 5 Mar 1981, 10:32 pm GMT+9:30 | 6 Mar 1981, 8:01 pm GMT+9:30 | 21 hr 28 min | Yes |
| 4 | 4 Apr 1981, 9:20 am GMT+9:30 | 5 Apr 1981, 5:49 am GMT+9:30 | 20 hr 29 min | Yes |
| 5 | 3 May 1981, 5:45 pm GMT+9:30 | 4 May 1981, 1:49 pm GMT+9:30 | 20 hr 4 min | Yes |
| 6 | 2 Jun 1981, 12:45 am GMT+9:30 | 2 Jun 1981, 9:01 pm GMT+9:30 | 20 hr 16 min | No |
| 7 | 1 Jul 1981, 7:33 am GMT+9:30 | 2 Jul 1981, 4:33 am GMT+9:30 | 21 hr 0 min | Yes |
| 8 | 30 Jul 1981, 3:14 pm GMT+9:30 | 31 Jul 1981, 1:21 pm GMT+9:30 | 22 hr 7 min | Yes |
| 9 | 29 Aug 1981, 12:47 am GMT+9:30 | 30 Aug 1981, 12:13 am GMT+9:30 | 23 hr 26 min | Yes |
| 10 | 27 Sept 1981, 12:52 pm GMT+9:30 | 28 Sept 1981, 1:37 pm GMT+9:30 | 24 hr 45 min | Yes |
| 11 | 27 Oct 1981, 4:50 am GMT+10:30 | 28 Oct 1981, 6:43 am GMT+10:30 | 25 hr 53 min | Yes |
| 12 | 25 Nov 1981, 10:34 pm GMT+10:30 | 27 Nov 1981, 1:08 am GMT+10:30 | 26 hr 34 min | Yes |
| 13 | 25 Dec 1981, 6:10 pm GMT+10:30 | 26 Dec 1981, 8:40 pm GMT+10:30 | 26 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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