Amavasya (अमावस्या) dates and timings in Perth for 1977
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 | 19 Jan 1977, 12:25 am GMT+8 | 19 Jan 1977, 10:11 pm GMT+8 | 21 hr 45 min | No |
| 2 | 17 Feb 1977, 12:27 pm GMT+8 | 18 Feb 1977, 11:36 am GMT+8 | 23 hr 9 min | Yes |
| 3 | 19 Mar 1977, 1:50 am GMT+8 | 20 Mar 1977, 2:32 am GMT+8 | 24 hr 42 min | Yes |
| 4 | 17 Apr 1977, 4:39 pm GMT+8 | 18 Apr 1977, 6:35 pm GMT+8 | 25 hr 56 min | Yes |
| 5 | 17 May 1977, 8:20 am GMT+8 | 18 May 1977, 10:51 am GMT+8 | 26 hr 31 min | Yes |
| 6 | 16 Jun 1977, 12:02 am GMT+8 | 17 Jun 1977, 2:22 am GMT+8 | 26 hr 20 min | Yes |
| 7 | 15 Jul 1977, 3:03 pm GMT+8 | 16 Jul 1977, 4:36 pm GMT+8 | 25 hr 33 min | Yes |
| 8 | 14 Aug 1977, 5:06 am GMT+8 | 15 Aug 1977, 5:31 am GMT+8 | 24 hr 25 min | Yes |
| 9 | 12 Sept 1977, 6:15 pm GMT+8 | 13 Sept 1977, 5:22 pm GMT+8 | 23 hr 7 min | Yes |
| 10 | 12 Oct 1977, 6:40 am GMT+8 | 13 Oct 1977, 4:30 am GMT+8 | 21 hr 51 min | Yes |
| 11 | 10 Nov 1977, 6:22 pm GMT+8 | 11 Nov 1977, 3:09 pm GMT+8 | 20 hr 47 min | Yes |
| 12 | 10 Dec 1977, 5:22 am GMT+8 | 11 Dec 1977, 1:32 am GMT+8 | 20 hr 10 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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