Trayodashi (त्रयोदशी) dates and timings in Delhi for 1980
Verified astronomical start and end times for lunar day 28 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 | 15 Jan 1980, 8:33 am IST | 16 Jan 1980, 7:12 am IST | 22 hr 39 min | Yes |
| 2 | 13 Feb 1980, 11:03 pm IST | 14 Feb 1980, 8:36 pm IST | 21 hr 33 min | Yes |
| 3 | 14 Mar 1980, 10:53 am IST | 15 Mar 1980, 7:43 am IST | 20 hr 50 min | Yes |
| 4 | 12 Apr 1980, 8:05 pm IST | 13 Apr 1980, 4:38 pm IST | 20 hr 33 min | Yes |
| 5 | 12 May 1980, 3:12 am IST | 12 May 1980, 11:55 pm IST | 20 hr 44 min | No |
| 6 | 10 Jun 1980, 9:14 am IST | 11 Jun 1980, 6:37 am IST | 21 hr 23 min | Yes |
| 7 | 9 Jul 1980, 3:35 pm IST | 10 Jul 1980, 2:03 pm IST | 22 hr 29 min | Yes |
| 8 | 7 Aug 1980, 11:40 pm IST | 8 Aug 1980, 11:31 pm IST | 23 hr 51 min | Yes |
| 9 | 6 Sept 1980, 10:41 am IST | 7 Sept 1980, 11:55 am IST | 25 hr 13 min | Yes |
| 10 | 6 Oct 1980, 1:10 am IST | 7 Oct 1980, 3:24 am IST | 26 hr 14 min | Yes |
| 11 | 4 Nov 1980, 6:45 pm IST | 5 Nov 1980, 9:21 pm IST | 26 hr 36 min | Yes |
| 12 | 4 Dec 1980, 2:20 pm IST | 5 Dec 1980, 4:36 pm IST | 26 hr 15 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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