Dwitiya (द्वितीया) dates and timings in Perth for 1997
Verified astronomical start and end times for lunar day 17 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 | 25 Jan 1997, 1:37 am GMT+8 | 26 Jan 1997, 4:15 am GMT+8 | 26 hr 38 min | Yes |
| 2 | 23 Feb 1997, 9:03 pm GMT+8 | 24 Feb 1997, 11:31 pm GMT+8 | 26 hr 28 min | Yes |
| 3 | 25 Mar 1997, 2:38 pm GMT+8 | 26 Mar 1997, 4:08 pm GMT+8 | 25 hr 30 min | Yes |
| 4 | 24 Apr 1997, 5:06 am GMT+8 | 25 Apr 1997, 5:10 am GMT+8 | 24 hr 4 min | Yes |
| 5 | 23 May 1997, 4:16 pm GMT+8 | 24 May 1997, 2:53 pm GMT+8 | 22 hr 37 min | Yes |
| 6 | 22 Jun 1997, 12:53 am GMT+8 | 22 Jun 1997, 10:21 pm GMT+8 | 21 hr 28 min | No |
| 7 | 21 Jul 1997, 8:09 am GMT+8 | 22 Jul 1997, 4:51 am GMT+8 | 20 hr 42 min | Yes |
| 8 | 19 Aug 1997, 3:14 pm GMT+8 | 20 Aug 1997, 11:36 am GMT+8 | 20 hr 22 min | Yes |
| 9 | 17 Sept 1997, 11:05 pm GMT+8 | 18 Sept 1997, 7:31 pm GMT+8 | 20 hr 26 min | Yes |
| 10 | 17 Oct 1997, 8:23 am GMT+8 | 18 Oct 1997, 5:22 am GMT+8 | 20 hr 58 min | Yes |
| 11 | 15 Nov 1997, 7:42 pm GMT+8 | 16 Nov 1997, 5:42 pm GMT+8 | 22 hr 0 min | Yes |
| 12 | 15 Dec 1997, 9:27 am GMT+8 | 16 Dec 1997, 8:54 am GMT+8 | 23 hr 27 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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