Tritiya (तृतीया) dates and timings in Bangkok for 2031
Verified astronomical start and end times for lunar day 18 in Bangkok, shown in Asia/Bangkok.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 11 Jan 2031, 5:27 am GMT+7 | 12 Jan 2031, 6:55 am GMT+7 | 25 hr 28 min | Yes |
| 2 | 9 Feb 2031, 9:21 pm GMT+7 | 10 Feb 2031, 9:31 pm GMT+7 | 24 hr 11 min | Yes |
| 3 | 11 Mar 2031, 10:17 am GMT+7 | 12 Mar 2031, 9:10 am GMT+7 | 22 hr 53 min | Yes |
| 4 | 9 Apr 2031, 8:34 pm GMT+7 | 10 Apr 2031, 6:19 pm GMT+7 | 21 hr 45 min | Yes |
| 5 | 9 May 2031, 4:48 am GMT+7 | 10 May 2031, 1:42 am GMT+7 | 20 hr 55 min | Yes |
| 6 | 7 Jun 2031, 11:44 am GMT+7 | 8 Jun 2031, 8:12 am GMT+7 | 20 hr 28 min | Yes |
| 7 | 6 Jul 2031, 6:20 pm GMT+7 | 7 Jul 2031, 2:51 pm GMT+7 | 20 hr 31 min | Yes |
| 8 | 5 Aug 2031, 1:42 am GMT+7 | 5 Aug 2031, 10:50 pm GMT+7 | 21 hr 8 min | No |
| 9 | 3 Sept 2031, 11:03 am GMT+7 | 4 Sept 2031, 9:19 am GMT+7 | 22 hr 16 min | Yes |
| 10 | 2 Oct 2031, 11:22 pm GMT+7 | 3 Oct 2031, 11:04 pm GMT+7 | 23 hr 42 min | Yes |
| 11 | 1 Nov 2031, 3:00 pm GMT+7 | 2 Nov 2031, 4:07 pm GMT+7 | 25 hr 7 min | Yes |
| 12 | 1 Dec 2031, 9:26 am GMT+7 | 2 Dec 2031, 11:34 am GMT+7 | 26 hr 8 min | Yes |
| 13 | 31 Dec 2031, 5:16 am GMT+7 | 1 Jan 2032, 7:49 am GMT+7 | 26 hr 33 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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