Chaturthi (चतुर्थी) dates and timings in Perth for 1986
Verified astronomical start and end times for lunar day 4 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 | 13 Jan 1986, 2:28 pm GMT+8 | 14 Jan 1986, 1:53 pm GMT+8 | 23 hr 25 min | Yes |
| 2 | 12 Feb 1986, 7:21 am GMT+8 | 13 Feb 1986, 8:14 am GMT+8 | 24 hr 54 min | Yes |
| 3 | 14 Mar 1986, 1:48 am GMT+8 | 15 Mar 1986, 3:52 am GMT+8 | 26 hr 4 min | Yes |
| 4 | 12 Apr 1986, 8:24 pm GMT+8 | 13 Apr 1986, 10:58 pm GMT+8 | 26 hr 34 min | Yes |
| 5 | 12 May 1986, 1:39 pm GMT+8 | 13 May 1986, 4:00 pm GMT+8 | 26 hr 21 min | Yes |
| 6 | 11 Jun 1986, 4:36 am GMT+8 | 12 Jun 1986, 6:13 am GMT+8 | 25 hr 37 min | Yes |
| 7 | 10 Jul 1986, 5:03 pm GMT+8 | 11 Jul 1986, 5:41 pm GMT+8 | 24 hr 37 min | Yes |
| 8 | 9 Aug 1986, 3:23 am GMT+8 | 10 Aug 1986, 2:54 am GMT+8 | 23 hr 31 min | Yes |
| 9 | 7 Sept 1986, 12:15 pm GMT+8 | 8 Sept 1986, 10:40 am GMT+8 | 22 hr 25 min | Yes |
| 10 | 6 Oct 1986, 8:22 pm GMT+8 | 7 Oct 1986, 5:51 pm GMT+8 | 21 hr 28 min | Yes |
| 11 | 5 Nov 1986, 4:34 am GMT+8 | 6 Nov 1986, 1:26 am GMT+8 | 20 hr 52 min | Yes |
| 12 | 4 Dec 1986, 1:38 pm GMT+8 | 5 Dec 1986, 10:26 am GMT+8 | 20 hr 48 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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