About Blue Hour Calculator

Photographers often need a fast answer to one simple question: when will the light look good at this location? This site focuses on that planning moment and explains the natural light windows that matter most for landscape, cityscape, travel, and portrait photography.

The calculator uses your selected date and location to estimate useful light windows around sunrise and sunset. Weather, mountains, buildings, and local horizon conditions can change the exact look of the light, so the results should be used as a planning guide rather than a guarantee.