Best time to take a photo?

Dawn - I rarely do dawn. I do dawn at home, but if I'm up at dawn I'm in no state to drive anywhere else.
A treat for photographers - a top photographer's pictures and tips.
http://www.bbc.co.uk/programmes/articles/3h7kQL2KB6LB2dQjQCplcH4/travel-photography-tips-you-shouldnt-leave-home-without