Chaturthi (चतुर्थी) dates and timings in Adelaide for 1990
Verified astronomical start and end times for lunar day 4 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 | 31 Dec 1989, 2:26 pm GMT+10:30 | 1 Jan 1990, 1:53 pm GMT+10:30 | 23 hr 27 min | Yes |
| 2 | 30 Jan 1990, 2:11 am GMT+10:30 | 31 Jan 1990, 12:21 am GMT+10:30 | 22 hr 11 min | Yes |
| 3 | 28 Feb 1990, 11:50 am GMT+10:30 | 1 Mar 1990, 9:02 am GMT+10:30 | 21 hr 13 min | Yes |
| 4 | 29 Mar 1990, 7:01 pm GMT+9:30 | 30 Mar 1990, 3:47 pm GMT+9:30 | 20 hr 46 min | Yes |
| 5 | 28 Apr 1990, 2:42 am GMT+9:30 | 28 Apr 1990, 11:35 pm GMT+9:30 | 20 hr 53 min | No |
| 6 | 27 May 1990, 10:50 am GMT+9:30 | 28 May 1990, 8:22 am GMT+9:30 | 21 hr 31 min | Yes |
| 7 | 25 Jun 1990, 8:18 pm GMT+9:30 | 26 Jun 1990, 6:49 pm GMT+9:30 | 22 hr 31 min | Yes |
| 8 | 25 Jul 1990, 7:39 am GMT+9:30 | 26 Jul 1990, 7:21 am GMT+9:30 | 23 hr 42 min | Yes |
| 9 | 23 Aug 1990, 9:15 pm GMT+9:30 | 24 Aug 1990, 10:08 pm GMT+9:30 | 24 hr 53 min | Yes |
| 10 | 22 Sept 1990, 1:11 pm GMT+9:30 | 23 Sept 1990, 3:07 pm GMT+9:30 | 25 hr 56 min | Yes |
| 11 | 22 Oct 1990, 7:12 am GMT+9:30 | 23 Oct 1990, 9:48 am GMT+9:30 | 26 hr 35 min | Yes |
| 12 | 21 Nov 1990, 3:22 am GMT+10:30 | 22 Nov 1990, 5:58 am GMT+10:30 | 26 hr 35 min | Yes |
| 13 | 20 Dec 1990, 10:05 pm GMT+10:30 | 21 Dec 1990, 11:54 pm GMT+10:30 | 25 hr 49 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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