Chaturthi (चतुर्थी) dates and timings in Chicago for 2027
Verified astronomical start and end times for lunar day 4 in Chicago, shown in America/Chicago.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 10 Jan 2027, 9:58 pm GMT-6 | 11 Jan 2027, 11:59 pm GMT-6 | 26 hr 1 min | Yes |
| 2 | 9 Feb 2027, 2:50 pm GMT-6 | 10 Feb 2027, 3:35 pm GMT-6 | 24 hr 45 min | Yes |
| 3 | 11 Mar 2027, 4:07 am GMT-6 | 12 Mar 2027, 3:27 am GMT-6 | 23 hr 20 min | Yes |
| 4 | 9 Apr 2027, 3:02 pm GMT-5 | 10 Apr 2027, 1:10 pm GMT-5 | 22 hr 8 min | Yes |
| 5 | 8 May 2027, 10:33 pm GMT-5 | 9 May 2027, 7:53 pm GMT-5 | 21 hr 20 min | Yes |
| 6 | 7 Jun 2027, 4:56 am GMT-5 | 8 Jun 2027, 1:52 am GMT-5 | 20 hr 56 min | Yes |
| 7 | 6 Jul 2027, 11:19 am GMT-5 | 7 Jul 2027, 8:14 am GMT-5 | 20 hr 56 min | Yes |
| 8 | 4 Aug 2027, 6:39 pm GMT-5 | 5 Aug 2027, 3:57 pm GMT-5 | 21 hr 19 min | Yes |
| 9 | 3 Sept 2027, 3:49 am GMT-5 | 4 Sept 2027, 1:56 am GMT-5 | 22 hr 7 min | Yes |
| 10 | 2 Oct 2027, 3:39 pm GMT-5 | 3 Oct 2027, 2:58 pm GMT-5 | 23 hr 20 min | Yes |
| 11 | 1 Nov 2027, 6:46 am GMT-5 | 2 Nov 2027, 7:32 am GMT-5 | 24 hr 47 min | Yes |
| 12 | 1 Dec 2027, 12:09 am GMT-6 | 2 Dec 2027, 2:14 am GMT-6 | 26 hr 4 min | Yes |
| 13 | 30 Dec 2027, 8:42 pm GMT-6 | 31 Dec 2027, 11:25 pm GMT-6 | 26 hr 44 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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