Chaturthi (चतुर्थी) dates and timings in Brisbane for 1981
Verified astronomical start and end times for lunar day 4 in Brisbane, shown in Australia/Brisbane.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 9 Jan 1981, 3:42 pm GMT+10 | 10 Jan 1981, 2:26 pm GMT+10 | 22 hr 44 min | Yes |
| 2 | 8 Feb 1981, 2:20 am GMT+10 | 8 Feb 1981, 11:56 pm GMT+10 | 21 hr 36 min | No |
| 3 | 9 Mar 1981, 11:16 am GMT+10 | 10 Mar 1981, 8:10 am GMT+10 | 20 hr 54 min | Yes |
| 4 | 7 Apr 1981, 7:16 pm GMT+10 | 8 Apr 1981, 4:02 pm GMT+10 | 20 hr 46 min | Yes |
| 5 | 7 May 1981, 3:18 am GMT+10 | 8 May 1981, 12:29 am GMT+10 | 21 hr 11 min | Yes |
| 6 | 5 Jun 1981, 12:13 pm GMT+10 | 6 Jun 1981, 10:16 am GMT+10 | 22 hr 3 min | Yes |
| 7 | 4 Jul 1981, 10:43 pm GMT+10 | 5 Jul 1981, 9:54 pm GMT+10 | 23 hr 10 min | Yes |
| 8 | 3 Aug 1981, 11:15 am GMT+10 | 4 Aug 1981, 11:37 am GMT+10 | 24 hr 22 min | Yes |
| 9 | 2 Sept 1981, 1:59 am GMT+10 | 3 Sept 1981, 3:29 am GMT+10 | 25 hr 30 min | Yes |
| 10 | 1 Oct 1981, 6:54 pm GMT+10 | 2 Oct 1981, 9:15 pm GMT+10 | 26 hr 21 min | Yes |
| 11 | 31 Oct 1981, 1:28 pm GMT+10 | 1 Nov 1981, 4:08 pm GMT+10 | 26 hr 40 min | Yes |
| 12 | 30 Nov 1981, 8:24 am GMT+10 | 1 Dec 1981, 10:39 am GMT+10 | 26 hr 15 min | Yes |
| 13 | 30 Dec 1981, 2:01 am GMT+10 | 31 Dec 1981, 3:10 am GMT+10 | 25 hr 9 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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