What time is sunset on October 19th 2012 in Cabo San Lucas?

You can calculate the time of sunrise and sunset easily by visiting the United States Naval Observatory web site's Sunrise & Sunset calculator. You will need the date, city and state for US locations, or the date, latitude, longitude and time zone for any other locations in the world.

The site is

http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-day

You can also calculate the times of sunrise and sunset for one year at a given location at the site:

http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-year