Worldtime
A service featuring an interactive world atlas, information on local time and time zones as well as sunrise and sunset times in several hundred cities, and a database of public holidays worldwide.

Sun or Moon Rise/Set Table for One Year
Obtain a table of the times of sunrise/sunset, moonrise/moonset, or the beginning and end of twilight, for one year.

Sunrise and Sunset Times
Calculate sunrise and sunset times for your particular location.

Sunrise/Sunset Calculation
Online utility for calculating the apparent sunrise and sunset.

Sunrise and Sunset
By latitude and longitude.

Complete Sun and Moon Data for One Day
Calculates the times of sunrise, sunset, moonrise, moonset, transits, and the beginning and end of civil twilight, along with information on the Moon's phase by specifying the date and location.

Solar Photoperiod Calculator
For a given location and date calculates sunrise, sunset, civil twilight, sun height; in JavaScript and an Excel file.

Sunrise, sunset, solar position, and solar radiation calculators for Excel
Three downloadable Excel workbooks.

SunTimes Version 4.0
Windows freeware interactive viewer showing day and night move across the world's timezones.

Sunriset
Online calculator of sun rise/set times for any location. Interactive world map is available.

Sunrise, Sunset and Twilight Times
Calculate the rise and set time of the sun for anywhere in Australia.

Tables for Sun and Moon Rise and Set
Authoritative source for tables of sunrise/sunset, moonrise/moonset and twilight by year.