Chaturthi (चतुर्थी) dates and timings in Bangkok for 2018
Verified astronomical start and end times for lunar day 4 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 | 20 Jan 2018, 3:41 pm GMT+7 | 21 Jan 2018, 5:03 pm GMT+7 | 25 hr 23 min | Yes |
| 2 | 19 Feb 2018, 6:47 am GMT+7 | 20 Feb 2018, 6:45 am GMT+7 | 23 hr 58 min | Yes |
| 3 | 20 Mar 2018, 6:20 pm GMT+7 | 21 Mar 2018, 4:58 pm GMT+7 | 22 hr 38 min | Yes |
| 4 | 19 Apr 2018, 2:59 am GMT+7 | 20 Apr 2018, 12:38 am GMT+7 | 21 hr 38 min | Yes |
| 5 | 18 May 2018, 9:54 am GMT+7 | 19 May 2018, 6:58 am GMT+7 | 21 hr 3 min | Yes |
| 6 | 16 Jun 2018, 4:16 pm GMT+7 | 17 Jun 2018, 1:09 pm GMT+7 | 20 hr 53 min | Yes |
| 7 | 15 Jul 2018, 11:05 pm GMT+7 | 16 Jul 2018, 8:10 pm GMT+7 | 21 hr 6 min | Yes |
| 8 | 14 Aug 2018, 7:15 am GMT+7 | 15 Aug 2018, 4:57 am GMT+7 | 21 hr 43 min | Yes |
| 9 | 12 Sept 2018, 5:37 pm GMT+7 | 13 Sept 2018, 4:21 pm GMT+7 | 22 hr 44 min | Yes |
| 10 | 12 Oct 2018, 6:58 am GMT+7 | 13 Oct 2018, 7:04 am GMT+7 | 24 hr 7 min | Yes |
| 11 | 10 Nov 2018, 11:42 pm GMT+7 | 12 Nov 2018, 1:14 am GMT+7 | 25 hr 32 min | Yes |
| 12 | 10 Dec 2018, 7:20 pm GMT+7 | 11 Dec 2018, 9:52 pm GMT+7 | 26 hr 32 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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