Chaturdashi (चतुर्दशी) dates and timings in San Francisco for 2021
Verified astronomical start and end times for lunar day 29 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 | 11 Jan 2021, 1:02 am GMT-8 | 11 Jan 2021, 10:52 pm GMT-8 | 21 hr 50 min | No |
| 2 | 9 Feb 2021, 12:35 pm GMT-8 | 10 Feb 2021, 11:39 am GMT-8 | 23 hr 4 min | Yes |
| 3 | 11 Mar 2021, 1:10 am GMT-8 | 12 Mar 2021, 1:33 am GMT-8 | 24 hr 23 min | Yes |
| 4 | 9 Apr 2021, 3:58 pm GMT-7 | 10 Apr 2021, 5:33 pm GMT-7 | 25 hr 36 min | Yes |
| 5 | 9 May 2021, 7:01 am GMT-7 | 10 May 2021, 9:25 am GMT-7 | 26 hr 25 min | Yes |
| 6 | 7 Jun 2021, 10:54 pm GMT-7 | 9 Jun 2021, 1:28 am GMT-7 | 26 hr 34 min | Yes |
| 7 | 7 Jul 2021, 2:50 pm GMT-7 | 8 Jul 2021, 4:47 pm GMT-7 | 25 hr 56 min | Yes |
| 8 | 6 Aug 2021, 5:58 am GMT-7 | 7 Aug 2021, 6:41 am GMT-7 | 24 hr 43 min | Yes |
| 9 | 4 Sept 2021, 7:51 pm GMT-7 | 5 Sept 2021, 7:08 pm GMT-7 | 23 hr 17 min | Yes |
| 10 | 4 Oct 2021, 8:35 am GMT-7 | 5 Oct 2021, 6:34 am GMT-7 | 21 hr 59 min | Yes |
| 11 | 2 Nov 2021, 8:32 pm GMT-7 | 3 Nov 2021, 5:33 pm GMT-7 | 21 hr 1 min | Yes |
| 12 | 2 Dec 2021, 6:56 am GMT-8 | 3 Dec 2021, 3:26 am GMT-8 | 20 hr 29 min | Yes |
| 13 | 31 Dec 2021, 5:47 pm GMT-8 | 1 Jan 2022, 2:12 pm GMT-8 | 20 hr 25 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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