Chaturthi (चतुर्थी) dates and timings in Perth for 1983
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 | 17 Jan 1983, 8:42 pm GMT+8 | 18 Jan 1983, 10:41 pm GMT+8 | 25 hr 59 min | Yes |
| 2 | 16 Feb 1983, 1:28 pm GMT+8 | 17 Feb 1983, 2:19 pm GMT+8 | 24 hr 51 min | Yes |
| 3 | 18 Mar 1983, 2:51 am GMT+8 | 19 Mar 1983, 2:28 am GMT+8 | 23 hr 37 min | Yes |
| 4 | 16 Apr 1983, 1:08 pm GMT+8 | 17 Apr 1983, 11:36 am GMT+8 | 22 hr 29 min | Yes |
| 5 | 15 May 1983, 9:01 pm GMT+8 | 16 May 1983, 6:33 pm GMT+8 | 21 hr 32 min | Yes |
| 6 | 14 Jun 1983, 3:27 am GMT+8 | 15 Jun 1983, 12:22 am GMT+8 | 20 hr 55 min | Yes |
| 7 | 13 Jul 1983, 9:28 am GMT+8 | 14 Jul 1983, 6:12 am GMT+8 | 20 hr 44 min | Yes |
| 8 | 11 Aug 1983, 4:15 pm GMT+8 | 12 Aug 1983, 1:19 pm GMT+8 | 21 hr 5 min | Yes |
| 9 | 10 Sept 1983, 1:01 am GMT+8 | 10 Sept 1983, 10:59 pm GMT+8 | 21 hr 58 min | No |
| 10 | 9 Oct 1983, 12:51 pm GMT+8 | 10 Oct 1983, 12:07 pm GMT+8 | 23 hr 16 min | Yes |
| 11 | 8 Nov 1983, 5:15 am GMT+9 | 9 Nov 1983, 5:56 am GMT+9 | 24 hr 41 min | Yes |
| 12 | 7 Dec 1983, 11:46 pm GMT+9 | 9 Dec 1983, 1:38 am GMT+9 | 25 hr 51 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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