Pratipada (प्रतिपदा) dates and timings in Chicago for 2031
Verified astronomical start and end times for lunar day 1 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 | 22 Jan 2031, 10:30 pm GMT-6 | 23 Jan 2031, 7:16 pm GMT-6 | 20 hr 46 min | Yes |
| 2 | 21 Feb 2031, 9:48 am GMT-6 | 22 Feb 2031, 7:35 am GMT-6 | 21 hr 47 min | Yes |
| 3 | 22 Mar 2031, 10:49 pm GMT-5 | 23 Mar 2031, 10:01 pm GMT-5 | 23 hr 13 min | Yes |
| 4 | 21 Apr 2031, 11:57 am GMT-5 | 22 Apr 2031, 12:40 pm GMT-5 | 24 hr 44 min | Yes |
| 5 | 21 May 2031, 2:17 am GMT-5 | 22 May 2031, 4:12 am GMT-5 | 25 hr 55 min | Yes |
| 6 | 19 Jun 2031, 5:24 pm GMT-5 | 20 Jun 2031, 7:52 pm GMT-5 | 26 hr 28 min | Yes |
| 7 | 19 Jul 2031, 8:40 am GMT-5 | 20 Jul 2031, 10:58 am GMT-5 | 26 hr 18 min | Yes |
| 8 | 17 Aug 2031, 11:32 pm GMT-5 | 19 Aug 2031, 1:06 am GMT-5 | 25 hr 34 min | Yes |
| 9 | 16 Sept 2031, 1:46 pm GMT-5 | 17 Sept 2031, 2:14 pm GMT-5 | 24 hr 28 min | Yes |
| 10 | 16 Oct 2031, 3:20 am GMT-5 | 17 Oct 2031, 2:29 am GMT-5 | 23 hr 9 min | Yes |
| 11 | 14 Nov 2031, 3:09 pm GMT-6 | 15 Nov 2031, 12:59 pm GMT-6 | 21 hr 49 min | Yes |
| 12 | 14 Dec 2031, 3:05 am GMT-6 | 14 Dec 2031, 11:49 pm GMT-6 | 20 hr 44 min | No |
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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