Amavasya (अमावस्या) dates and timings in Perth for 2021
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 | 12 Jan 2021, 2:52 pm GMT+8 | 13 Jan 2021, 1:00 pm GMT+8 | 22 hr 7 min | Yes |
| 2 | 11 Feb 2021, 3:39 am GMT+8 | 12 Feb 2021, 3:05 am GMT+8 | 23 hr 26 min | Yes |
| 3 | 12 Mar 2021, 5:33 pm GMT+8 | 13 Mar 2021, 6:21 pm GMT+8 | 24 hr 48 min | Yes |
| 4 | 11 Apr 2021, 8:33 am GMT+8 | 12 Apr 2021, 10:30 am GMT+8 | 25 hr 57 min | Yes |
| 5 | 11 May 2021, 12:25 am GMT+8 | 12 May 2021, 2:59 am GMT+8 | 26 hr 34 min | Yes |
| 6 | 9 Jun 2021, 4:28 pm GMT+8 | 10 Jun 2021, 6:52 pm GMT+8 | 26 hr 24 min | Yes |
| 7 | 9 Jul 2021, 7:47 am GMT+8 | 10 Jul 2021, 9:16 am GMT+8 | 25 hr 30 min | Yes |
| 8 | 7 Aug 2021, 9:41 pm GMT+8 | 8 Aug 2021, 9:50 pm GMT+8 | 24 hr 8 min | Yes |
| 9 | 6 Sept 2021, 10:08 am GMT+8 | 7 Sept 2021, 8:51 am GMT+8 | 22 hr 43 min | Yes |
| 10 | 5 Oct 2021, 9:34 pm GMT+8 | 6 Oct 2021, 7:05 pm GMT+8 | 21 hr 31 min | Yes |
| 11 | 4 Nov 2021, 8:33 am GMT+8 | 5 Nov 2021, 5:14 am GMT+8 | 20 hr 41 min | Yes |
| 12 | 3 Dec 2021, 7:26 pm GMT+8 | 4 Dec 2021, 3:43 pm GMT+8 | 20 hr 17 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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