Trayodashi (त्रयोदशी) dates and timings in Delhi for 1971
Verified astronomical start and end times for lunar day 13 in Delhi, shown in Asia/Kolkata.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 8 Jan 1971, 5:35 pm IST | 9 Jan 1971, 5:33 pm IST | 23 hr 57 min | Yes |
| 2 | 7 Feb 1971, 7:53 am IST | 8 Feb 1971, 9:15 am IST | 25 hr 23 min | Yes |
| 3 | 9 Mar 1971, 12:28 am IST | 10 Mar 1971, 2:51 am IST | 26 hr 23 min | Yes |
| 4 | 7 Apr 1971, 6:15 pm IST | 8 Apr 1971, 8:54 pm IST | 26 hr 38 min | Yes |
| 5 | 7 May 1971, 11:48 am IST | 8 May 1971, 1:54 pm IST | 26 hr 7 min | Yes |
| 6 | 6 Jun 1971, 3:57 am IST | 7 Jun 1971, 5:02 am IST | 25 hr 4 min | Yes |
| 7 | 5 Jul 1971, 6:20 pm IST | 6 Jul 1971, 6:10 pm IST | 23 hr 50 min | Yes |
| 8 | 4 Aug 1971, 7:02 am IST | 5 Aug 1971, 5:39 am IST | 22 hr 37 min | Yes |
| 9 | 2 Sept 1971, 6:21 pm IST | 3 Sept 1971, 3:54 pm IST | 21 hr 33 min | Yes |
| 10 | 2 Oct 1971, 4:33 am IST | 3 Oct 1971, 1:20 am IST | 20 hr 46 min | Yes |
| 11 | 31 Oct 1971, 1:57 pm IST | 1 Nov 1971, 10:24 am IST | 20 hr 27 min | Yes |
| 12 | 29 Nov 1971, 10:59 pm IST | 30 Nov 1971, 7:41 pm IST | 20 hr 42 min | Yes |
| 13 | 29 Dec 1971, 8:20 am IST | 30 Dec 1971, 5:53 am IST | 21 hr 33 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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