Any nature or landscape photographer is likely cognizant of the importance of sunrise and sunset times on their photography. Many landscape photographers also shoot in the twilight before dawn or after sunrise, or seek to include the moon in their compositions. I just found a great site called sunrisesunset.com that quickly and easily gives you not only sunrise and sunset times for a particular location but also moonrise, moonset, moon phase, civil twilight, nautical twilight, and astronomical twilight times. Here’s a sample image for March 2010 in my town of Camden, Maine:
This is actually a crop of the full calendar – the default seems to be showing information for an entire month. To find your specific location, US residents can simply choose their state from this page and then select the town and month and, like magic, you get all this wonderful information. For free. I’ve seen this information in various other locations before but nowhere so readily available. Highly recommended.