Chaturthi (चतुर्थी) dates and timings in Perth for 1991
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 | 3 Jan 1991, 5:22 pm GMT+8 | 4 Jan 1991, 3:24 pm GMT+8 | 22 hr 1 min | Yes |
| 2 | 2 Feb 1991, 7:47 am GMT+8 | 3 Feb 1991, 6:54 am GMT+8 | 23 hr 7 min | Yes |
| 3 | 3 Mar 1991, 11:43 pm GMT+8 | 5 Mar 1991, 12:07 am GMT+8 | 24 hr 24 min | Yes |
| 4 | 2 Apr 1991, 4:39 pm GMT+8 | 3 Apr 1991, 6:16 pm GMT+8 | 25 hr 37 min | Yes |
| 5 | 2 May 1991, 9:59 am GMT+8 | 3 May 1991, 12:25 pm GMT+8 | 26 hr 26 min | Yes |
| 6 | 1 Jun 1991, 2:51 am GMT+8 | 2 Jun 1991, 5:25 am GMT+8 | 26 hr 34 min | Yes |
| 7 | 30 Jun 1991, 6:18 pm GMT+8 | 1 Jul 1991, 8:16 pm GMT+8 | 25 hr 58 min | Yes |
| 8 | 30 Jul 1991, 7:37 am GMT+8 | 31 Jul 1991, 8:30 am GMT+8 | 24 hr 53 min | Yes |
| 9 | 28 Aug 1991, 6:45 pm GMT+8 | 29 Aug 1991, 6:25 pm GMT+8 | 23 hr 40 min | Yes |
| 10 | 27 Sept 1991, 4:16 am GMT+8 | 28 Sept 1991, 2:50 am GMT+8 | 22 hr 34 min | Yes |
| 11 | 26 Oct 1991, 1:06 pm GMT+8 | 27 Oct 1991, 10:47 am GMT+8 | 21 hr 41 min | Yes |
| 12 | 24 Nov 1991, 11:07 pm GMT+9 | 25 Nov 1991, 8:14 pm GMT+9 | 21 hr 7 min | Yes |
| 13 | 24 Dec 1991, 8:54 am GMT+9 | 25 Dec 1991, 5:48 am GMT+9 | 20 hr 54 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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