Amavasya (अमावस्या) dates and timings in Adelaide for 1991
Verified astronomical start and end times for lunar day 30 in Adelaide, shown in Australia/Adelaide.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 15 Jan 1991, 8:08 am GMT+10:30 | 16 Jan 1991, 10:19 am GMT+10:30 | 26 hr 11 min | Yes |
| 2 | 14 Feb 1991, 3:04 am GMT+10:30 | 15 Feb 1991, 4:01 am GMT+10:30 | 24 hr 57 min | Yes |
| 3 | 15 Mar 1991, 6:18 pm GMT+9:30 | 16 Mar 1991, 5:40 pm GMT+9:30 | 23 hr 22 min | Yes |
| 4 | 14 Apr 1991, 7:13 am GMT+9:30 | 15 Apr 1991, 5:07 am GMT+9:30 | 21 hr 54 min | Yes |
| 5 | 13 May 1991, 5:13 pm GMT+9:30 | 14 May 1991, 2:05 pm GMT+9:30 | 20 hr 52 min | Yes |
| 6 | 12 Jun 1991, 1:16 am GMT+9:30 | 12 Jun 1991, 9:35 pm GMT+9:30 | 20 hr 20 min | No |
| 7 | 11 Jul 1991, 8:20 am GMT+9:30 | 12 Jul 1991, 4:36 am GMT+9:30 | 20 hr 16 min | Yes |
| 8 | 9 Aug 1991, 3:20 pm GMT+9:30 | 10 Aug 1991, 11:57 am GMT+9:30 | 20 hr 37 min | Yes |
| 9 | 7 Sept 1991, 11:06 pm GMT+9:30 | 8 Sept 1991, 8:30 pm GMT+9:30 | 21 hr 24 min | Yes |
| 10 | 7 Oct 1991, 8:34 am GMT+9:30 | 8 Oct 1991, 7:08 am GMT+9:30 | 22 hr 35 min | Yes |
| 11 | 5 Nov 1991, 9:37 pm GMT+10:30 | 6 Nov 1991, 9:41 pm GMT+10:30 | 24 hr 4 min | Yes |
| 12 | 5 Dec 1991, 12:53 pm GMT+10:30 | 6 Dec 1991, 2:26 pm GMT+10:30 | 25 hr 33 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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