Amavasya (अमावस्या) dates and timings in Perth for 1973
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 | 3 Jan 1973, 9:36 pm GMT+8 | 4 Jan 1973, 11:42 pm GMT+8 | 26 hr 6 min | Yes |
| 2 | 2 Feb 1973, 4:33 pm GMT+8 | 3 Feb 1973, 5:22 pm GMT+8 | 24 hr 49 min | Yes |
| 3 | 4 Mar 1973, 8:54 am GMT+8 | 5 Mar 1973, 8:07 am GMT+8 | 23 hr 13 min | Yes |
| 4 | 2 Apr 1973, 9:58 pm GMT+8 | 3 Apr 1973, 7:45 pm GMT+8 | 21 hr 46 min | Yes |
| 5 | 2 May 1973, 8:08 am GMT+8 | 3 May 1973, 4:54 am GMT+8 | 20 hr 46 min | Yes |
| 6 | 31 May 1973, 4:16 pm GMT+8 | 1 Jun 1973, 12:34 pm GMT+8 | 20 hr 17 min | Yes |
| 7 | 29 Jun 1973, 11:21 pm GMT+8 | 30 Jun 1973, 7:38 pm GMT+8 | 20 hr 17 min | Yes |
| 8 | 29 Jul 1973, 6:16 am GMT+8 | 30 Jul 1973, 2:58 am GMT+8 | 20 hr 42 min | Yes |
| 9 | 27 Aug 1973, 1:54 pm GMT+8 | 28 Aug 1973, 11:25 am GMT+8 | 21 hr 31 min | Yes |
| 10 | 25 Sept 1973, 11:10 pm GMT+8 | 26 Sept 1973, 9:53 pm GMT+8 | 22 hr 43 min | Yes |
| 11 | 25 Oct 1973, 11:04 am GMT+8 | 26 Oct 1973, 11:16 am GMT+8 | 24 hr 12 min | Yes |
| 12 | 24 Nov 1973, 2:15 am GMT+8 | 25 Nov 1973, 3:55 am GMT+8 | 25 hr 40 min | Yes |
| 13 | 23 Dec 1973, 8:31 pm GMT+8 | 24 Dec 1973, 11:07 pm GMT+8 | 26 hr 36 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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