Pratipada (प्रतिपदा) dates and timings in Perth for 1991
Verified astronomical start and end times for lunar day 16 in Perth, shown in Australia/Perth.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 1 Jan 1991, 2:35 am GMT+8 | 1 Jan 1991, 11:07 pm GMT+8 | 20 hr 32 min | No |
| 2 | 30 Jan 1991, 2:09 pm GMT+8 | 31 Jan 1991, 11:32 am GMT+8 | 21 hr 23 min | Yes |
| 3 | 1 Mar 1991, 2:24 am GMT+8 | 2 Mar 1991, 12:57 am GMT+8 | 22 hr 33 min | Yes |
| 4 | 30 Mar 1991, 3:17 pm GMT+8 | 31 Mar 1991, 3:11 pm GMT+8 | 23 hr 54 min | Yes |
| 5 | 29 Apr 1991, 4:58 am GMT+8 | 30 Apr 1991, 6:11 am GMT+8 | 25 hr 13 min | Yes |
| 6 | 28 May 1991, 7:36 pm GMT+8 | 29 May 1991, 9:49 pm GMT+8 | 26 hr 13 min | Yes |
| 7 | 27 Jun 1991, 10:58 am GMT+8 | 28 Jun 1991, 1:31 pm GMT+8 | 26 hr 33 min | Yes |
| 8 | 27 Jul 1991, 2:24 am GMT+8 | 28 Jul 1991, 4:30 am GMT+8 | 26 hr 6 min | Yes |
| 9 | 25 Aug 1991, 5:07 pm GMT+8 | 26 Aug 1991, 6:07 pm GMT+8 | 25 hr 0 min | Yes |
| 10 | 24 Sept 1991, 6:39 am GMT+8 | 25 Sept 1991, 6:16 am GMT+8 | 23 hr 36 min | Yes |
| 11 | 23 Oct 1991, 7:08 pm GMT+8 | 24 Oct 1991, 5:23 pm GMT+8 | 22 hr 15 min | Yes |
| 12 | 22 Nov 1991, 7:56 am GMT+9 | 23 Nov 1991, 5:06 am GMT+9 | 21 hr 10 min | Yes |
| 13 | 21 Dec 1991, 7:23 pm GMT+9 | 22 Dec 1991, 3:51 pm GMT+9 | 20 hr 28 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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