Dwadashi (द्वादशी) dates and timings in San Francisco for 2021
Verified astronomical start and end times for lunar day 27 in San Francisco, shown in America/Los_Angeles.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 9 Jan 2021, 5:47 am GMT-8 | 10 Jan 2021, 3:23 am GMT-8 | 21 hr 36 min | Yes |
| 2 | 7 Feb 2021, 3:17 pm GMT-8 | 8 Feb 2021, 1:50 pm GMT-8 | 22 hr 32 min | Yes |
| 3 | 9 Mar 2021, 1:32 am GMT-8 | 10 Mar 2021, 1:10 am GMT-8 | 23 hr 38 min | Yes |
| 4 | 7 Apr 2021, 1:59 pm GMT-7 | 8 Apr 2021, 2:46 pm GMT-7 | 24 hr 47 min | Yes |
| 5 | 7 May 2021, 3:02 am GMT-7 | 8 May 2021, 4:51 am GMT-7 | 25 hr 49 min | Yes |
| 6 | 5 Jun 2021, 5:49 pm GMT-7 | 6 Jun 2021, 8:18 pm GMT-7 | 26 hr 29 min | Yes |
| 7 | 5 Jul 2021, 10:00 am GMT-7 | 6 Jul 2021, 12:32 pm GMT-7 | 26 hr 32 min | Yes |
| 8 | 4 Aug 2021, 2:47 am GMT-7 | 5 Aug 2021, 4:39 am GMT-7 | 25 hr 52 min | Yes |
| 9 | 2 Sept 2021, 7:14 pm GMT-7 | 3 Sept 2021, 7:54 pm GMT-7 | 24 hr 40 min | Yes |
| 10 | 2 Oct 2021, 10:41 am GMT-7 | 3 Oct 2021, 10:00 am GMT-7 | 23 hr 19 min | Yes |
| 11 | 1 Nov 2021, 12:52 am GMT-7 | 1 Nov 2021, 11:01 pm GMT-7 | 22 hr 9 min | No |
| 12 | 30 Nov 2021, 12:44 pm GMT-8 | 1 Dec 2021, 10:05 am GMT-8 | 21 hr 22 min | Yes |
| 13 | 30 Dec 2021, 12:10 am GMT-8 | 30 Dec 2021, 9:10 pm GMT-8 | 20 hr 59 min | No |
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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