Tritiya (तृतीया) dates and timings in Perth for 1983
Verified astronomical start and end times for lunar day 18 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 | 1 Jan 1983, 12:09 pm GMT+8 | 2 Jan 1983, 8:44 am GMT+8 | 20 hr 35 min | Yes |
| 2 | 30 Jan 1983, 11:15 pm GMT+8 | 31 Jan 1983, 8:11 pm GMT+8 | 20 hr 56 min | Yes |
| 3 | 1 Mar 1983, 11:04 am GMT+8 | 2 Mar 1983, 8:55 am GMT+8 | 21 hr 51 min | Yes |
| 4 | 30 Mar 1983, 11:52 pm GMT+8 | 31 Mar 1983, 11:04 pm GMT+8 | 23 hr 12 min | Yes |
| 5 | 29 Apr 1983, 1:52 pm GMT+8 | 30 Apr 1983, 2:31 pm GMT+8 | 24 hr 39 min | Yes |
| 6 | 29 May 1983, 4:59 am GMT+8 | 30 May 1983, 6:48 am GMT+8 | 25 hr 49 min | Yes |
| 7 | 27 Jun 1983, 8:42 pm GMT+8 | 28 Jun 1983, 11:06 pm GMT+8 | 26 hr 24 min | Yes |
| 8 | 27 Jul 1983, 12:18 pm GMT+8 | 28 Jul 1983, 2:38 pm GMT+8 | 26 hr 20 min | Yes |
| 9 | 26 Aug 1983, 3:13 am GMT+8 | 27 Aug 1983, 4:57 am GMT+8 | 25 hr 44 min | Yes |
| 10 | 24 Sept 1983, 5:11 pm GMT+8 | 25 Sept 1983, 5:56 pm GMT+8 | 24 hr 45 min | Yes |
| 11 | 24 Oct 1983, 6:06 am GMT+8 | 25 Oct 1983, 5:38 am GMT+8 | 23 hr 33 min | Yes |
| 12 | 22 Nov 1983, 6:59 pm GMT+9 | 23 Nov 1983, 5:16 pm GMT+9 | 22 hr 16 min | Yes |
| 13 | 22 Dec 1983, 5:55 am GMT+9 | 23 Dec 1983, 3:05 am GMT+9 | 21 hr 10 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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