Chaturdashi (चतुर्दशी) dates and timings in Perth for 1981
Verified astronomical start and end times for lunar day 14 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 | 18 Jan 1981, 6:25 pm GMT+8 | 19 Jan 1981, 4:49 pm GMT+8 | 22 hr 25 min | Yes |
| 2 | 17 Feb 1981, 6:46 am GMT+8 | 18 Feb 1981, 6:39 am GMT+8 | 23 hr 53 min | Yes |
| 3 | 18 Mar 1981, 8:39 pm GMT+8 | 19 Mar 1981, 9:50 pm GMT+8 | 25 hr 11 min | Yes |
| 4 | 17 Apr 1981, 11:40 am GMT+8 | 18 Apr 1981, 1:44 pm GMT+8 | 26 hr 4 min | Yes |
| 5 | 17 May 1981, 3:17 am GMT+8 | 18 May 1981, 5:41 am GMT+8 | 26 hr 24 min | Yes |
| 6 | 15 Jun 1981, 7:01 pm GMT+8 | 16 Jun 1981, 9:10 pm GMT+8 | 26 hr 9 min | Yes |
| 7 | 15 Jul 1981, 10:24 am GMT+8 | 16 Jul 1981, 11:45 am GMT+8 | 25 hr 21 min | Yes |
| 8 | 14 Aug 1981, 1:00 am GMT+8 | 15 Aug 1981, 1:06 am GMT+8 | 24 hr 6 min | Yes |
| 9 | 12 Sept 1981, 2:25 pm GMT+8 | 13 Sept 1981, 1:04 pm GMT+8 | 22 hr 39 min | Yes |
| 10 | 12 Oct 1981, 2:35 am GMT+8 | 12 Oct 1981, 11:56 pm GMT+8 | 21 hr 21 min | No |
| 11 | 10 Nov 1981, 1:43 pm GMT+8 | 11 Nov 1981, 10:13 am GMT+8 | 20 hr 30 min | Yes |
| 12 | 10 Dec 1981, 12:16 am GMT+8 | 10 Dec 1981, 8:30 pm GMT+8 | 20 hr 15 min | No |
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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