Tritiya (तृतीया) dates and timings in San Francisco for 2028
Verified astronomical start and end times for lunar day 18 in San Francisco, shown in America/Los_Angeles.
12 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 13 Jan 2028, 1:09 pm GMT-8 | 14 Jan 2028, 9:47 am GMT-8 | 20 hr 38 min | Yes |
| 2 | 11 Feb 2028, 11:34 pm GMT-8 | 12 Feb 2028, 8:10 pm GMT-8 | 20 hr 35 min | Yes |
| 3 | 12 Mar 2028, 11:04 am GMT-7 | 13 Mar 2028, 8:09 am GMT-7 | 21 hr 5 min | Yes |
| 4 | 10 Apr 2028, 9:59 pm GMT-7 | 11 Apr 2028, 8:06 pm GMT-7 | 22 hr 8 min | Yes |
| 5 | 10 May 2028, 9:51 am GMT-7 | 11 May 2028, 9:22 am GMT-7 | 23 hr 31 min | Yes |
| 6 | 8 Jun 2028, 11:07 pm GMT-7 | 10 Jun 2028, 12:02 am GMT-7 | 24 hr 55 min | Yes |
| 7 | 8 Jul 2028, 1:50 pm GMT-7 | 9 Jul 2028, 3:48 pm GMT-7 | 25 hr 58 min | Yes |
| 8 | 7 Aug 2028, 5:34 am GMT-7 | 8 Aug 2028, 8:00 am GMT-7 | 26 hr 26 min | Yes |
| 9 | 5 Sept 2028, 9:39 pm GMT-7 | 6 Sept 2028, 11:56 pm GMT-7 | 26 hr 17 min | Yes |
| 10 | 5 Oct 2028, 1:28 pm GMT-7 | 6 Oct 2028, 3:05 pm GMT-7 | 25 hr 37 min | Yes |
| 11 | 4 Nov 2028, 4:30 am GMT-7 | 5 Nov 2028, 4:03 am GMT-8 | 24 hr 33 min | Yes |
| 12 | 3 Dec 2028, 5:18 pm GMT-8 | 4 Dec 2028, 4:34 pm GMT-8 | 23 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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