Chaturthi (चतुर्थी) dates and timings in Chicago for 2011
Verified astronomical start and end times for lunar day 19 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 2011, 6:18 am GMT-6 | 23 Jan 2011, 3:15 am GMT-6 | 20 hr 56 min | Yes |
| 2 | 20 Feb 2011, 3:34 pm GMT-6 | 21 Feb 2011, 12:19 pm GMT-6 | 20 hr 45 min | Yes |
| 3 | 22 Mar 2011, 2:03 am GMT-5 | 22 Mar 2011, 11:12 pm GMT-5 | 21 hr 9 min | No |
| 4 | 20 Apr 2011, 12:19 pm GMT-5 | 21 Apr 2011, 10:21 am GMT-5 | 22 hr 2 min | Yes |
| 5 | 19 May 2011, 11:47 pm GMT-5 | 20 May 2011, 10:58 pm GMT-5 | 23 hr 11 min | Yes |
| 6 | 18 Jun 2011, 12:37 pm GMT-5 | 19 Jun 2011, 1:00 pm GMT-5 | 24 hr 23 min | Yes |
| 7 | 18 Jul 2011, 2:52 am GMT-5 | 19 Jul 2011, 4:19 am GMT-5 | 25 hr 28 min | Yes |
| 8 | 16 Aug 2011, 6:31 pm GMT-5 | 17 Aug 2011, 8:46 pm GMT-5 | 26 hr 15 min | Yes |
| 9 | 15 Sept 2011, 11:20 am GMT-5 | 16 Sept 2011, 1:53 pm GMT-5 | 26 hr 33 min | Yes |
| 10 | 15 Oct 2011, 4:35 am GMT-5 | 16 Oct 2011, 6:47 am GMT-5 | 26 hr 12 min | Yes |
| 11 | 13 Nov 2011, 8:09 pm GMT-6 | 14 Nov 2011, 9:21 pm GMT-6 | 25 hr 12 min | Yes |
| 12 | 13 Dec 2011, 10:51 am GMT-6 | 14 Dec 2011, 10:42 am GMT-6 | 23 hr 51 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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