Sunrise and Sunset Times in the Yahoo! Directory

Worldtime
Information on local time and sunrise and sunset times in several hundred cities, and a database of public holidays worldwide.
www.worldtime.com
Sunrise, Sunset Calendars and Local Time
Provides custom calendars featuring sunrise, sunset, moon phases, and related information.
www.sunrisesunset.com
NOAA Sunrise/Sunset Calculator
Computes apparent sunrise, apparent sunset, and solar noon for cities around the world.
www.srrb.noaa.gov/highlights/sunrise/sunrise.html
Old Farmer's Almanac Sun & Moon Rise & Set
Provides a four step calculator for locations in the U.S. and Canada.
www.almanac.com/rise/index.php
Compute Sunrise, Sunset & Twilight For Cities & Airports Worldwide With Local TZ
Offers step by step instructions.
www.mindspring.com/~cavu/sunset.html
The Apparently Odd Behaviour of Sunrise/Set Times Near the Winter Solstice
Leaflet from the Royal Observatory Greenwich.
www.nmm.ac.uk/server.php?request=setTemplate:singlecontent&contentTypeA=con...
Sunrise Sunset Times
Displays sunrise sunset times in major cities around the world.
www.timesunrisesunset.com