How can I calculate the sun rising time for a specific point on earth?
I'm looking for a tool, application, etc. that allows me to calculate the sun rising time for any specific point on the earth. I've found a lot of such tools, but all of them do not take mountains, etc. into account that will block the sun. To clarify: I'm interested in the time when I'll be able to see the sun. I'm asking this, because when traveling I like to take pictures during sunrise.