Pratipada (प्रतिपदा) dates and timings in Perth for 2100
Verified astronomical start and end times for lunar day 1 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 | 10 Jan 2100, 8:57 pm GMT+8 | 11 Jan 2100, 8:42 pm GMT+8 | 23 hr 45 min | Yes |
| 2 | 9 Feb 2100, 12:56 pm GMT+8 | 10 Feb 2100, 2:13 pm GMT+8 | 25 hr 17 min | Yes |
| 3 | 11 Mar 2100, 6:30 am GMT+8 | 12 Mar 2100, 8:50 am GMT+8 | 26 hr 20 min | Yes |
| 4 | 10 Apr 2100, 12:18 am GMT+8 | 11 Apr 2100, 2:52 am GMT+8 | 26 hr 35 min | Yes |
| 5 | 9 May 2100, 4:55 pm GMT+8 | 10 May 2100, 6:58 pm GMT+8 | 26 hr 3 min | Yes |
| 6 | 8 Jun 2100, 7:33 am GMT+8 | 9 Jun 2100, 8:35 am GMT+8 | 25 hr 2 min | Yes |
| 7 | 7 Jul 2100, 8:08 pm GMT+8 | 8 Jul 2100, 7:56 pm GMT+8 | 23 hr 48 min | Yes |
| 8 | 6 Aug 2100, 7:03 am GMT+8 | 7 Aug 2100, 5:34 am GMT+8 | 22 hr 31 min | Yes |
| 9 | 4 Sept 2100, 4:51 pm GMT+8 | 5 Sept 2100, 2:12 pm GMT+8 | 21 hr 21 min | Yes |
| 10 | 4 Oct 2100, 2:04 am GMT+8 | 4 Oct 2100, 10:33 pm GMT+8 | 20 hr 29 min | No |
| 11 | 2 Nov 2100, 11:16 am GMT+8 | 3 Nov 2100, 7:21 am GMT+8 | 20 hr 5 min | Yes |
| 12 | 1 Dec 2100, 9:02 pm GMT+8 | 2 Dec 2100, 5:21 pm GMT+8 | 20 hr 19 min | Yes |
| 13 | 31 Dec 2100, 7:58 am GMT+8 | 1 Jan 2101, 5:09 am GMT+8 | 21 hr 12 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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