Chaturthi (चतुर्थी) dates and timings in Perth for 1931
Verified astronomical start and end times for lunar day 19 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 | 7 Jan 1931, 11:55 am GMT+8 | 8 Jan 1931, 8:54 am GMT+8 | 20 hr 59 min | Yes |
| 2 | 5 Feb 1931, 9:38 pm GMT+8 | 6 Feb 1931, 6:33 pm GMT+8 | 20 hr 55 min | Yes |
| 3 | 7 Mar 1931, 7:59 am GMT+8 | 8 Mar 1931, 5:16 am GMT+8 | 21 hr 18 min | Yes |
| 4 | 5 Apr 1931, 7:02 pm GMT+8 | 6 Apr 1931, 5:05 pm GMT+8 | 22 hr 3 min | Yes |
| 5 | 5 May 1931, 6:52 am GMT+8 | 6 May 1931, 5:58 am GMT+8 | 23 hr 6 min | Yes |
| 6 | 3 Jun 1931, 7:44 pm GMT+8 | 4 Jun 1931, 8:06 pm GMT+8 | 24 hr 22 min | Yes |
| 7 | 3 Jul 1931, 9:59 am GMT+8 | 4 Jul 1931, 11:34 am GMT+8 | 25 hr 35 min | Yes |
| 8 | 2 Aug 1931, 1:45 am GMT+8 | 3 Aug 1931, 4:11 am GMT+8 | 26 hr 26 min | Yes |
| 9 | 31 Aug 1931, 6:31 pm GMT+8 | 1 Sept 1931, 9:07 pm GMT+8 | 26 hr 36 min | Yes |
| 10 | 30 Sept 1931, 11:17 am GMT+8 | 1 Oct 1931, 1:19 pm GMT+8 | 26 hr 2 min | Yes |
| 11 | 30 Oct 1931, 2:56 am GMT+8 | 31 Oct 1931, 3:54 am GMT+8 | 24 hr 58 min | Yes |
| 12 | 28 Nov 1931, 4:48 pm GMT+8 | 29 Nov 1931, 4:32 pm GMT+8 | 23 hr 44 min | Yes |
| 13 | 28 Dec 1931, 4:52 am GMT+8 | 29 Dec 1931, 3:28 am GMT+8 | 22 hr 35 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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