Amavasya (अमावस्या) dates and timings in Bangkok for 2031
Verified astronomical start and end times for lunar day 30 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 | 22 Jan 2031, 2:57 pm GMT+7 | 23 Jan 2031, 11:30 am GMT+7 | 20 hr 33 min | Yes |
| 2 | 21 Feb 2031, 1:25 am GMT+7 | 21 Feb 2031, 10:48 pm GMT+7 | 21 hr 24 min | No |
| 3 | 22 Mar 2031, 12:07 pm GMT+7 | 23 Mar 2031, 10:49 am GMT+7 | 22 hr 41 min | Yes |
| 4 | 20 Apr 2031, 11:45 pm GMT+7 | 21 Apr 2031, 11:57 pm GMT+7 | 24 hr 12 min | Yes |
| 5 | 20 May 2031, 12:44 pm GMT+7 | 21 May 2031, 2:17 pm GMT+7 | 25 hr 32 min | Yes |
| 6 | 19 Jun 2031, 3:04 am GMT+7 | 20 Jun 2031, 5:24 am GMT+7 | 26 hr 21 min | Yes |
| 7 | 18 Jul 2031, 6:13 pm GMT+7 | 19 Jul 2031, 8:40 pm GMT+7 | 26 hr 27 min | Yes |
| 8 | 17 Aug 2031, 9:38 am GMT+7 | 18 Aug 2031, 11:32 am GMT+7 | 25 hr 54 min | Yes |
| 9 | 16 Sept 2031, 12:53 am GMT+7 | 17 Sept 2031, 1:46 am GMT+7 | 24 hr 54 min | Yes |
| 10 | 15 Oct 2031, 3:43 pm GMT+7 | 16 Oct 2031, 3:20 pm GMT+7 | 23 hr 37 min | Yes |
| 11 | 14 Nov 2031, 5:54 am GMT+7 | 15 Nov 2031, 4:09 am GMT+7 | 22 hr 15 min | Yes |
| 12 | 13 Dec 2031, 7:03 pm GMT+7 | 14 Dec 2031, 4:05 pm GMT+7 | 21 hr 3 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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