Dwitiya (द्वितीया) dates and timings in Adelaide for 1980
Verified astronomical start and end times for lunar day 17 in Adelaide, shown in Australia/Adelaide.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 3 Jan 1980, 8:06 pm GMT+10:30 | 4 Jan 1980, 9:15 pm GMT+10:30 | 25 hr 9 min | Yes |
| 2 | 2 Feb 1980, 2:47 pm GMT+10:30 | 3 Feb 1980, 5:05 pm GMT+10:30 | 26 hr 18 min | Yes |
| 3 | 3 Mar 1980, 9:05 am GMT+9:30 | 4 Mar 1980, 11:43 am GMT+9:30 | 26 hr 38 min | Yes |
| 4 | 2 Apr 1980, 3:06 am GMT+9:30 | 3 Apr 1980, 5:14 am GMT+9:30 | 26 hr 8 min | Yes |
| 5 | 1 May 1980, 6:34 pm GMT+9:30 | 2 May 1980, 7:40 pm GMT+9:30 | 25 hr 6 min | Yes |
| 6 | 31 May 1980, 7:13 am GMT+9:30 | 1 Jun 1980, 7:05 am GMT+9:30 | 23 hr 51 min | Yes |
| 7 | 29 Jun 1980, 5:30 pm GMT+9:30 | 30 Jun 1980, 4:07 pm GMT+9:30 | 22 hr 36 min | Yes |
| 8 | 29 Jul 1980, 2:09 am GMT+9:30 | 29 Jul 1980, 11:39 pm GMT+9:30 | 21 hr 29 min | No |
| 9 | 27 Aug 1980, 9:59 am GMT+9:30 | 28 Aug 1980, 6:37 am GMT+9:30 | 20 hr 38 min | Yes |
| 10 | 25 Sept 1980, 5:48 pm GMT+9:30 | 26 Sept 1980, 2:00 pm GMT+9:30 | 20 hr 12 min | Yes |
| 11 | 25 Oct 1980, 2:28 am GMT+9:30 | 25 Oct 1980, 10:49 pm GMT+9:30 | 20 hr 21 min | No |
| 12 | 23 Nov 1980, 1:49 pm GMT+10:30 | 24 Nov 1980, 10:57 am GMT+10:30 | 21 hr 7 min | Yes |
| 13 | 23 Dec 1980, 2:28 am GMT+10:30 | 24 Dec 1980, 12:53 am GMT+10:30 | 22 hr 25 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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