Tritiya (तृतीया) dates and timings in Perth for 2099
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 | 9 Jan 2099, 3:16 am GMT+8 | 9 Jan 2099, 11:59 pm GMT+8 | 20 hr 43 min | No |
| 2 | 7 Feb 2099, 1:24 pm GMT+8 | 8 Feb 2099, 9:59 am GMT+8 | 20 hr 35 min | Yes |
| 3 | 8 Mar 2099, 11:49 pm GMT+8 | 9 Mar 2099, 8:45 pm GMT+8 | 20 hr 56 min | Yes |
| 4 | 7 Apr 2099, 10:35 am GMT+8 | 8 Apr 2099, 8:15 am GMT+8 | 21 hr 40 min | Yes |
| 5 | 6 May 2099, 9:50 pm GMT+8 | 7 May 2099, 8:35 pm GMT+8 | 22 hr 46 min | Yes |
| 6 | 5 Jun 2099, 9:56 am GMT+8 | 6 Jun 2099, 10:01 am GMT+8 | 24 hr 4 min | Yes |
| 7 | 4 Jul 2099, 11:26 pm GMT+8 | 6 Jul 2099, 12:49 am GMT+8 | 25 hr 23 min | Yes |
| 8 | 3 Aug 2099, 2:34 pm GMT+8 | 4 Aug 2099, 4:55 pm GMT+8 | 26 hr 20 min | Yes |
| 9 | 2 Sept 2099, 7:00 am GMT+8 | 3 Sept 2099, 9:36 am GMT+8 | 26 hr 37 min | Yes |
| 10 | 1 Oct 2099, 11:44 pm GMT+8 | 3 Oct 2099, 1:50 am GMT+8 | 26 hr 7 min | Yes |
| 11 | 31 Oct 2099, 3:39 pm GMT+8 | 1 Nov 2099, 4:42 pm GMT+8 | 25 hr 2 min | Yes |
| 12 | 30 Nov 2099, 6:05 am GMT+8 | 1 Dec 2099, 5:49 am GMT+8 | 23 hr 44 min | Yes |
| 13 | 29 Dec 2099, 6:53 pm GMT+8 | 30 Dec 2099, 5:23 pm GMT+8 | 22 hr 30 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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