The precise time of sunset is extremely dependent on the exact location you are interested in. The link below will take you to a perpetual sunrise/sunset calculator that will work for any date or location.
Here's the data for Fort Bragg, on the northern CA coast just north of Mendocino, and for San Francisco, CA. These times are accurate even if you can't SEE them; Fort Bragg and San Francisco are often foggy at sunset.
The following information is provided for Fort Bragg, Mendocino County, California (longitude W123.8, latitude N39.4): Saturday
8 August 2009 Pacific Daylight Time
SUN
Begin civil twilight 5:52 a.m.
Sunrise 6:22 a.m.
Sun transit 1:21 p.m.
Sunset 8:19 p.m.
End civil twilight 8:49 p.m.
The following information is provided for San Francisco, San Francisco County, California (longitude W122.4, latitude N37.8): Saturday 8 August 2009 Pacific Daylight Time
SUN
Begin civil twilight 5:51 a.m.
Sunrise 6:20 a.m.
Sun transit 1:15 p.m.
Sunset 8:11 p.m.
End civil twilight 8:39 p.m.
The official sunset time in San Francisco on October 31, 2009, is 6:12 PM.NOTE: California is a big place and sunset time can vary from place to place, depending on where you stand. But it will probably not vary by more than 2-3 minutes from the sunset time in San Francisco.
19:54
7:39 p.m.
6:15pm
6:09
yesterday
77 Sunset Strip - 1958 Downbeat 1-31 was released on: USA: 8 May 1959
In 2010, sunset should be at 6:39 pm on October 31st.
Sunset in Dallas TX on 30 May 2009 was at 8:29 PM CDT (31 May @ 01:29 UTC).
6:37pm is the official sunset. Weather.com has this everyday for every zip code.
On 7 Nov 2007, sunset at Phoenix was at 5:31 PM MST.
at 4:31 PM PST