Chaturthi (चतुर्थी) dates and timings in Delhi for 1991
Verified astronomical start and end times for lunar day 4 in Delhi, shown in Asia/Kolkata.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 19 Jan 1991, 9:34 am IST | 20 Jan 1991, 10:05 am IST | 24 hr 31 min | Yes |
| 2 | 17 Feb 1991, 10:51 pm IST | 18 Feb 1991, 9:57 pm IST | 23 hr 6 min | Yes |
| 3 | 19 Mar 1991, 9:03 am IST | 20 Mar 1991, 6:59 am IST | 21 hr 56 min | Yes |
| 4 | 17 Apr 1991, 5:03 pm IST | 18 Apr 1991, 2:15 pm IST | 21 hr 12 min | Yes |
| 5 | 16 May 1991, 11:58 pm IST | 17 May 1991, 8:52 pm IST | 20 hr 54 min | Yes |
| 6 | 15 Jun 1991, 6:49 am IST | 16 Jun 1991, 3:49 am IST | 21 hr 0 min | Yes |
| 7 | 14 Jul 1991, 2:27 pm IST | 15 Jul 1991, 11:56 am IST | 21 hr 29 min | Yes |
| 8 | 12 Aug 1991, 11:42 pm IST | 13 Aug 1991, 10:04 pm IST | 22 hr 22 min | Yes |
| 9 | 11 Sept 1991, 11:22 am IST | 12 Sept 1991, 10:59 am IST | 23 hr 37 min | Yes |
| 10 | 11 Oct 1991, 2:10 am IST | 12 Oct 1991, 3:12 am IST | 25 hr 2 min | Yes |
| 11 | 9 Nov 1991, 8:11 pm IST | 10 Nov 1991, 10:25 pm IST | 26 hr 14 min | Yes |
| 12 | 9 Dec 1991, 4:24 pm IST | 10 Dec 1991, 7:09 pm IST | 26 hr 46 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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