Sunrise, Sunset, Moonrise, Moonset and Twilight

The Sunrise/Sunset site will give you the sunrise and sunset times for anywhere in the world. If you live in a major city you get to pick from a pretty extensive list. If you're from a less populated area you're going to need to brush up on your longitude and latitude. The site will even print out a calendar of these times. It has Civil, Nautical, and Astronomical Twilights available. Depending on your operating system there is even a freeware download that you can run in your system tray.