Chaturthi (चतुर्थी) dates and timings in Perth for 1911
Verified astronomical start and end times for lunar day 4 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 | 4 Jan 1911, 4:01 am GMT+8 | 5 Jan 1911, 4:24 am GMT+8 | 24 hr 23 min | Yes |
| 2 | 2 Feb 1911, 5:17 pm GMT+8 | 3 Feb 1911, 4:27 pm GMT+8 | 23 hr 9 min | Yes |
| 3 | 4 Mar 1911, 4:04 am GMT+8 | 5 Mar 1911, 2:09 am GMT+8 | 22 hr 5 min | Yes |
| 4 | 2 Apr 1911, 12:53 pm GMT+8 | 3 Apr 1911, 10:10 am GMT+8 | 21 hr 16 min | Yes |
| 5 | 1 May 1911, 8:23 pm GMT+8 | 2 May 1911, 5:13 pm GMT+8 | 20 hr 50 min | Yes |
| 6 | 31 May 1911, 3:22 am GMT+8 | 1 Jun 1911, 12:13 am GMT+8 | 20 hr 52 min | Yes |
| 7 | 29 Jun 1911, 10:49 am GMT+8 | 30 Jun 1911, 8:14 am GMT+8 | 21 hr 25 min | Yes |
| 8 | 28 Jul 1911, 7:51 pm GMT+8 | 29 Jul 1911, 6:19 pm GMT+8 | 22 hr 28 min | Yes |
| 9 | 27 Aug 1911, 7:29 am GMT+8 | 28 Aug 1911, 7:19 am GMT+8 | 23 hr 50 min | Yes |
| 10 | 25 Sept 1911, 10:17 pm GMT+8 | 26 Sept 1911, 11:28 pm GMT+8 | 25 hr 11 min | Yes |
| 11 | 25 Oct 1911, 4:00 pm GMT+8 | 26 Oct 1911, 6:11 pm GMT+8 | 26 hr 11 min | Yes |
| 12 | 24 Nov 1911, 11:33 am GMT+8 | 25 Nov 1911, 2:08 pm GMT+8 | 26 hr 35 min | Yes |
| 13 | 24 Dec 1911, 7:17 am GMT+8 | 25 Dec 1911, 9:40 am GMT+8 | 26 hr 22 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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