Chaturthi (चतुर्थी) dates and timings in Chicago for 2026
Verified astronomical start and end times for lunar day 4 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 | 21 Jan 2026, 3:17 pm GMT-6 | 22 Jan 2026, 2:58 pm GMT-6 | 23 hr 41 min | Yes |
| 2 | 20 Feb 2026, 3:08 am GMT-6 | 21 Feb 2026, 1:31 am GMT-6 | 22 hr 22 min | Yes |
| 3 | 21 Mar 2026, 1:26 pm GMT-5 | 22 Mar 2026, 10:47 am GMT-5 | 21 hr 20 min | Yes |
| 4 | 19 Apr 2026, 8:58 pm GMT-5 | 20 Apr 2026, 5:45 pm GMT-5 | 20 hr 47 min | Yes |
| 5 | 19 May 2026, 3:48 am GMT-5 | 20 May 2026, 12:37 am GMT-5 | 20 hr 48 min | Yes |
| 6 | 17 Jun 2026, 11:09 am GMT-5 | 18 Jun 2026, 8:29 am GMT-5 | 21 hr 20 min | Yes |
| 7 | 16 Jul 2026, 7:58 pm GMT-5 | 17 Jul 2026, 6:13 pm GMT-5 | 22 hr 15 min | Yes |
| 8 | 15 Aug 2026, 6:59 am GMT-5 | 16 Aug 2026, 6:23 am GMT-5 | 23 hr 24 min | Yes |
| 9 | 13 Sept 2026, 8:37 pm GMT-5 | 14 Sept 2026, 9:14 pm GMT-5 | 24 hr 37 min | Yes |
| 10 | 13 Oct 2026, 12:58 pm GMT-5 | 14 Oct 2026, 2:43 pm GMT-5 | 25 hr 46 min | Yes |
| 11 | 12 Nov 2026, 6:39 am GMT-6 | 13 Nov 2026, 9:13 am GMT-6 | 26 hr 33 min | Yes |
| 12 | 12 Dec 2026, 2:36 am GMT-6 | 13 Dec 2026, 5:18 am GMT-6 | 26 hr 41 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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