Amavasya (अमावस्या) dates and timings in Perth for 1985
Verified astronomical start and end times for lunar day 30 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 | 20 Jan 1985, 10:43 am GMT+8 | 21 Jan 1985, 10:28 am GMT+8 | 23 hr 44 min | Yes |
| 2 | 19 Feb 1985, 1:37 am GMT+8 | 20 Feb 1985, 2:42 am GMT+8 | 25 hr 5 min | Yes |
| 3 | 20 Mar 1985, 5:49 pm GMT+8 | 21 Mar 1985, 7:58 pm GMT+8 | 26 hr 10 min | Yes |
| 4 | 19 Apr 1985, 10:44 am GMT+8 | 20 Apr 1985, 1:21 pm GMT+8 | 26 hr 37 min | Yes |
| 5 | 19 May 1985, 3:25 am GMT+8 | 20 May 1985, 5:41 am GMT+8 | 26 hr 16 min | Yes |
| 6 | 17 Jun 1985, 6:45 pm GMT+8 | 18 Jun 1985, 7:57 pm GMT+8 | 25 hr 12 min | Yes |
| 7 | 17 Jul 1985, 8:09 am GMT+8 | 18 Jul 1985, 7:56 am GMT+8 | 23 hr 47 min | Yes |
| 8 | 15 Aug 1985, 7:42 pm GMT+8 | 16 Aug 1985, 6:05 pm GMT+8 | 22 hr 23 min | Yes |
| 9 | 14 Sept 1985, 6:03 am GMT+8 | 15 Sept 1985, 3:19 am GMT+8 | 21 hr 16 min | Yes |
| 10 | 13 Oct 1985, 4:00 pm GMT+8 | 14 Oct 1985, 12:33 pm GMT+8 | 20 hr 33 min | Yes |
| 11 | 12 Nov 1985, 2:04 am GMT+8 | 12 Nov 1985, 10:20 pm GMT+8 | 20 hr 16 min | No |
| 12 | 11 Dec 1985, 12:27 pm GMT+8 | 12 Dec 1985, 8:54 am GMT+8 | 20 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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