Chaturdashi (चतुर्दशी) dates and timings in Perth for 1931
Verified astronomical start and end times for lunar day 29 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 1931, 12:01 am GMT+8 | 18 Jan 1931, 1:07 am GMT+8 | 25 hr 5 min | Yes |
| 2 | 15 Feb 1931, 4:37 pm GMT+8 | 16 Feb 1931, 6:46 pm GMT+8 | 26 hr 9 min | Yes |
| 3 | 17 Mar 1931, 10:34 am GMT+8 | 18 Mar 1931, 1:12 pm GMT+8 | 26 hr 38 min | Yes |
| 4 | 16 Apr 1931, 4:38 am GMT+8 | 17 Apr 1931, 6:58 am GMT+8 | 26 hr 20 min | Yes |
| 5 | 15 May 1931, 9:24 pm GMT+8 | 16 May 1931, 10:42 pm GMT+8 | 25 hr 18 min | Yes |
| 6 | 14 Jun 1931, 11:53 am GMT+8 | 15 Jun 1931, 11:45 am GMT+8 | 23 hr 52 min | Yes |
| 7 | 13 Jul 1931, 11:58 pm GMT+8 | 14 Jul 1931, 10:25 pm GMT+8 | 22 hr 27 min | Yes |
| 8 | 12 Aug 1931, 10:11 am GMT+8 | 13 Aug 1931, 7:31 am GMT+8 | 21 hr 19 min | Yes |
| 9 | 10 Sept 1931, 7:26 pm GMT+8 | 11 Sept 1931, 4:03 pm GMT+8 | 20 hr 37 min | Yes |
| 10 | 10 Oct 1931, 4:26 am GMT+8 | 11 Oct 1931, 12:49 am GMT+8 | 20 hr 23 min | Yes |
| 11 | 8 Nov 1931, 1:42 pm GMT+8 | 9 Nov 1931, 10:17 am GMT+8 | 20 hr 35 min | Yes |
| 12 | 7 Dec 1931, 11:32 pm GMT+8 | 8 Dec 1931, 8:47 pm GMT+8 | 21 hr 15 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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