Purnima (पूर्णिमा) dates and timings in Sydney for 1981
Verified astronomical start and end times for lunar day 15 in Sydney, shown in Australia/Sydney.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 19 Jan 1981, 7:49 pm GMT+11 | 20 Jan 1981, 6:38 pm GMT+11 | 22 hr 49 min | Yes |
| 2 | 18 Feb 1981, 9:39 am GMT+11 | 19 Feb 1981, 9:58 am GMT+11 | 24 hr 19 min | Yes |
| 3 | 19 Mar 1981, 11:50 pm GMT+10 | 21 Mar 1981, 1:22 am GMT+10 | 25 hr 32 min | Yes |
| 4 | 18 Apr 1981, 3:44 pm GMT+10 | 19 Apr 1981, 5:58 pm GMT+10 | 26 hr 15 min | Yes |
| 5 | 18 May 1981, 7:41 am GMT+10 | 19 May 1981, 10:03 am GMT+10 | 26 hr 22 min | Yes |
| 6 | 16 Jun 1981, 11:10 pm GMT+10 | 18 Jun 1981, 1:04 am GMT+10 | 25 hr 54 min | Yes |
| 7 | 16 Jul 1981, 1:45 pm GMT+10 | 17 Jul 1981, 2:38 pm GMT+10 | 24 hr 53 min | Yes |
| 8 | 15 Aug 1981, 3:06 am GMT+10 | 16 Aug 1981, 2:36 am GMT+10 | 23 hr 30 min | Yes |
| 9 | 13 Sept 1981, 3:04 pm GMT+10 | 14 Sept 1981, 1:08 pm GMT+10 | 22 hr 4 min | Yes |
| 10 | 13 Oct 1981, 1:56 am GMT+10 | 13 Oct 1981, 10:49 pm GMT+10 | 20 hr 53 min | No |
| 11 | 11 Nov 1981, 1:13 pm GMT+11 | 12 Nov 1981, 9:26 am GMT+11 | 20 hr 13 min | Yes |
| 12 | 10 Dec 1981, 11:30 pm GMT+11 | 11 Dec 1981, 7:41 pm GMT+11 | 20 hr 11 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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