Dwadashi (द्वादशी) dates and timings in Chicago for 2031
Verified astronomical start and end times for lunar day 27 in Chicago, shown in America/Chicago.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 19 Jan 2031, 11:49 am GMT-6 | 20 Jan 2031, 8:46 am GMT-6 | 20 hr 57 min | Yes |
| 2 | 17 Feb 2031, 8:58 pm GMT-6 | 18 Feb 2031, 6:08 pm GMT-6 | 21 hr 11 min | Yes |
| 3 | 19 Mar 2031, 5:59 am GMT-5 | 20 Mar 2031, 3:50 am GMT-5 | 21 hr 50 min | Yes |
| 4 | 17 Apr 2031, 1:53 pm GMT-5 | 18 Apr 2031, 12:46 pm GMT-5 | 22 hr 53 min | Yes |
| 5 | 16 May 2031, 10:48 pm GMT-5 | 17 May 2031, 10:59 pm GMT-5 | 24 hr 10 min | Yes |
| 6 | 15 Jun 2031, 9:42 am GMT-5 | 16 Jun 2031, 11:06 am GMT-5 | 25 hr 24 min | Yes |
| 7 | 14 Jul 2031, 10:59 pm GMT-5 | 16 Jul 2031, 1:15 am GMT-5 | 26 hr 16 min | Yes |
| 8 | 13 Aug 2031, 2:28 pm GMT-5 | 14 Aug 2031, 5:00 pm GMT-5 | 26 hr 32 min | Yes |
| 9 | 12 Sept 2031, 7:36 am GMT-5 | 13 Sept 2031, 9:45 am GMT-5 | 26 hr 9 min | Yes |
| 10 | 12 Oct 2031, 1:34 am GMT-5 | 13 Oct 2031, 2:52 am GMT-5 | 25 hr 18 min | Yes |
| 11 | 10 Nov 2031, 6:32 pm GMT-6 | 11 Nov 2031, 6:40 pm GMT-6 | 24 hr 8 min | Yes |
| 12 | 10 Dec 2031, 11:31 am GMT-6 | 11 Dec 2031, 10:23 am GMT-6 | 22 hr 52 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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