Chaturthi (चतुर्थी) dates and timings in Perth for 1973
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 | 8 Jan 1973, 3:36 am GMT+8 | 9 Jan 1973, 4:00 am GMT+8 | 24 hr 24 min | Yes |
| 2 | 6 Feb 1973, 4:48 pm GMT+8 | 7 Feb 1973, 3:47 pm GMT+8 | 22 hr 59 min | Yes |
| 3 | 8 Mar 1973, 3:07 am GMT+8 | 9 Mar 1973, 12:58 am GMT+8 | 21 hr 51 min | Yes |
| 4 | 6 Apr 1973, 11:22 am GMT+8 | 7 Apr 1973, 8:31 am GMT+8 | 21 hr 9 min | Yes |
| 5 | 5 May 1973, 6:37 pm GMT+8 | 6 May 1973, 3:31 pm GMT+8 | 20 hr 54 min | Yes |
| 6 | 4 Jun 1973, 1:48 am GMT+8 | 4 Jun 1973, 10:50 pm GMT+8 | 21 hr 3 min | No |
| 7 | 3 Jul 1973, 9:41 am GMT+8 | 4 Jul 1973, 7:15 am GMT+8 | 21 hr 35 min | Yes |
| 8 | 1 Aug 1973, 7:03 pm GMT+8 | 2 Aug 1973, 5:33 pm GMT+8 | 22 hr 30 min | Yes |
| 9 | 31 Aug 1973, 6:43 am GMT+8 | 1 Sept 1973, 6:28 am GMT+8 | 23 hr 45 min | Yes |
| 10 | 29 Sept 1973, 9:22 pm GMT+8 | 30 Sept 1973, 10:32 pm GMT+8 | 25 hr 9 min | Yes |
| 11 | 29 Oct 1973, 3:08 pm GMT+8 | 30 Oct 1973, 5:27 pm GMT+8 | 26 hr 18 min | Yes |
| 12 | 28 Nov 1973, 11:04 am GMT+8 | 29 Nov 1973, 1:50 pm GMT+8 | 26 hr 46 min | Yes |
| 13 | 28 Dec 1973, 7:11 am GMT+8 | 29 Dec 1973, 9:34 am GMT+8 | 26 hr 23 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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