Pratipada (प्रतिपदा) dates and timings in Bangkok for 2021
Verified astronomical start and end times for lunar day 1 in Bangkok, shown in Asia/Bangkok.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 13 Jan 2021, 12:00 pm GMT+7 | 14 Jan 2021, 10:31 am GMT+7 | 22 hr 32 min | Yes |
| 2 | 12 Feb 2021, 2:05 am GMT+7 | 13 Feb 2021, 1:59 am GMT+7 | 23 hr 54 min | Yes |
| 3 | 13 Mar 2021, 5:21 pm GMT+7 | 14 Mar 2021, 6:36 pm GMT+7 | 25 hr 15 min | Yes |
| 4 | 12 Apr 2021, 9:30 am GMT+7 | 13 Apr 2021, 11:47 am GMT+7 | 26 hr 16 min | Yes |
| 5 | 12 May 2021, 1:59 am GMT+7 | 13 May 2021, 4:36 am GMT+7 | 26 hr 37 min | Yes |
| 6 | 10 Jun 2021, 5:52 pm GMT+7 | 11 Jun 2021, 8:00 pm GMT+7 | 26 hr 8 min | Yes |
| 7 | 10 Jul 2021, 8:16 am GMT+7 | 11 Jul 2021, 9:17 am GMT+7 | 25 hr 1 min | Yes |
| 8 | 8 Aug 2021, 8:50 pm GMT+7 | 9 Aug 2021, 8:26 pm GMT+7 | 23 hr 37 min | Yes |
| 9 | 7 Sept 2021, 7:51 am GMT+7 | 8 Sept 2021, 6:07 am GMT+7 | 22 hr 16 min | Yes |
| 10 | 6 Oct 2021, 6:05 pm GMT+7 | 7 Oct 2021, 3:17 pm GMT+7 | 21 hr 12 min | Yes |
| 11 | 5 Nov 2021, 4:14 am GMT+7 | 6 Nov 2021, 12:45 am GMT+7 | 20 hr 30 min | Yes |
| 12 | 4 Dec 2021, 2:43 pm GMT+7 | 5 Dec 2021, 10:57 am GMT+7 | 20 hr 15 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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