Amavasya (अमावस्या) dates and timings in Perth for 1997
Verified astronomical start and end times for lunar day 30 in Perth, shown in Australia/Perth.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 8 Jan 1997, 3:46 pm GMT+8 | 9 Jan 1997, 12:25 pm GMT+8 | 20 hr 40 min | Yes |
| 2 | 7 Feb 1997, 2:53 am GMT+8 | 7 Feb 1997, 11:06 pm GMT+8 | 20 hr 13 min | No |
| 3 | 8 Mar 1997, 12:54 pm GMT+8 | 9 Mar 1997, 9:14 am GMT+8 | 20 hr 20 min | Yes |
| 4 | 6 Apr 1997, 10:06 pm GMT+8 | 7 Apr 1997, 7:01 pm GMT+8 | 20 hr 55 min | Yes |
| 5 | 6 May 1997, 6:54 am GMT+8 | 7 May 1997, 4:46 am GMT+8 | 21 hr 52 min | Yes |
| 6 | 4 Jun 1997, 3:59 pm GMT+8 | 5 Jun 1997, 3:03 pm GMT+8 | 23 hr 4 min | Yes |
| 7 | 4 Jul 1997, 2:14 am GMT+8 | 5 Jul 1997, 2:39 am GMT+8 | 24 hr 25 min | Yes |
| 8 | 2 Aug 1997, 2:32 pm GMT+8 | 3 Aug 1997, 4:13 pm GMT+8 | 25 hr 41 min | Yes |
| 9 | 1 Sept 1997, 5:20 am GMT+8 | 2 Sept 1997, 7:51 am GMT+8 | 26 hr 31 min | Yes |
| 10 | 30 Sept 1997, 10:17 pm GMT+8 | 2 Oct 1997, 12:51 am GMT+8 | 26 hr 34 min | Yes |
| 11 | 30 Oct 1997, 4:14 pm GMT+8 | 31 Oct 1997, 6:01 pm GMT+8 | 25 hr 47 min | Yes |
| 12 | 29 Nov 1997, 9:47 am GMT+8 | 30 Nov 1997, 10:14 am GMT+8 | 24 hr 26 min | Yes |
| 13 | 29 Dec 1997, 1:58 am GMT+8 | 30 Dec 1997, 12:56 am GMT+8 | 22 hr 58 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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