Trayodashi (त्रयोदशी) dates and timings in Bangkok for 2025
Verified astronomical start and end times for lunar day 13 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 | 11 Jan 2025, 9:52 am GMT+7 | 12 Jan 2025, 8:04 am GMT+7 | 22 hr 12 min | Yes |
| 2 | 9 Feb 2025, 8:55 pm GMT+7 | 10 Feb 2025, 8:27 pm GMT+7 | 23 hr 32 min | Yes |
| 3 | 11 Mar 2025, 9:44 am GMT+7 | 12 Mar 2025, 10:42 am GMT+7 | 24 hr 58 min | Yes |
| 4 | 10 Apr 2025, 12:25 am GMT+7 | 11 Apr 2025, 2:31 am GMT+7 | 26 hr 5 min | Yes |
| 5 | 9 May 2025, 4:26 pm GMT+7 | 10 May 2025, 7:00 pm GMT+7 | 26 hr 34 min | Yes |
| 6 | 8 Jun 2025, 8:48 am GMT+7 | 9 Jun 2025, 11:06 am GMT+7 | 26 hr 18 min | Yes |
| 7 | 8 Jul 2025, 12:40 am GMT+7 | 9 Jul 2025, 2:08 am GMT+7 | 25 hr 28 min | Yes |
| 8 | 6 Aug 2025, 3:38 pm GMT+7 | 7 Aug 2025, 3:58 pm GMT+7 | 24 hr 19 min | Yes |
| 9 | 5 Sept 2025, 5:38 am GMT+7 | 6 Sept 2025, 4:43 am GMT+7 | 23 hr 5 min | Yes |
| 10 | 4 Oct 2025, 6:39 pm GMT+7 | 5 Oct 2025, 4:34 pm GMT+7 | 21 hr 55 min | Yes |
| 11 | 3 Nov 2025, 6:37 am GMT+7 | 4 Nov 2025, 3:36 am GMT+7 | 20 hr 59 min | Yes |
| 12 | 2 Dec 2025, 5:27 pm GMT+7 | 3 Dec 2025, 1:56 pm GMT+7 | 20 hr 29 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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