What Are Golden Hour and Blue Hour?
Golden hour is the period just after sunrise and just before sunset — roughly when the sun is between 0° and 6° above the horizon. Light is warm, golden, soft, and directional, making it the most sought-after lighting condition for portrait, landscape, and architectural photography. Blue hour occurs just before sunrise and just after sunset (sun at -6° to 0°), casting a cool, deep blue tone across the sky.
This calculator uses an astronomical algorithm based on latitude, longitude, and date to determine precise golden and blue hour windows. Seasons matter greatly: in summer, golden hour can last 60–90 minutes at mid-latitudes; in winter it may compress to 30–40 minutes. Arrive at your location 15 minutes early to set up before the light starts changing.
Frequently Asked Questions
It varies by season and latitude. Summer golden hours at 40°N can last 60–90 minutes; winter hours may be as short as 30–40 minutes. Higher latitudes in summer can have golden hours of several hours.
Yes. Thin clouds scatter and soften the warm light beautifully. Dense clouds block it, but you can still get great moody blue hour shots with city lights visible.
Absolutely. Blue hour is ideal for cityscapes, long exposures, and seascapes where you want balanced exposure between sky and artificial lights. Bring a tripod.