What it is
The short interval before sunrise and after sunset when the sun sits below the horizon and the sky turns cool and even.
Why it matters
Soft, low-contrast light that flatters architecture, cities, water and long exposures without harsh shadows.
How long it lasts
Usually 10–20 minutes, depending on season, weather and geographic latitude.
Recommended gear
A tripod, low ISO, long shutter speeds, a fixed white balance (Daylight or a manual Kelvin setting), and enough patience to outwait the streetlights.
Blue Hour
Long before anyone gave it a name, people simply noticed that peculiar shade of early evening — a color sitting between certainty and hesitation — and felt the urge to capture it. They didn’t call it anything. They just sensed that the world behaved a little better for a few quiet minutes.
Today we call it Blue Hour, though the name is more optimistic than accurate. It isn’t an hour. It is a polite interruption.
The light doesn’t push or shout. It doesn’t carve deep shadows or ignite highlights. It simply settles over the scene with an even calm — enough structure to define shapes, enough softness to hide the noise.
Cities look cleaner. Windows glow with a quiet, orderly warmth. Water becomes a smooth, patient surface with very little effort on your part. And the sky holds a blue no manufacturer has ever successfully matched.
Blue Hour is simple, but not always forgiving. It appears briefly, changes quickly, and vanishes without apology. To make the most of it, you don’t need complicated theory — just preparation and punctuality.
Show up early. Choose a fixed white balance so the camera doesn’t correct away the tones you came for. Settle your tripod. Let the light come to you.
It is one of the few moments in the day when the world slows down on your behalf. All you have to do is stand still long enough to notice it.
Blue Hour in Photo Xpert
If you want to plan Blue Hour with precision, Photo Xpert makes it easy. The app shows the exact start and end times for any location, along with a clear timeline that helps you prepare your shot before the light changes. It’s a simple, reliable way to know when that quiet blue glow will appear — and how long it will stay.

Plan Blue Hour With the Right Tools
Photo Xpert
Precise blue-hour and golden-hour timelines, weather data, and practical light-planning tools for photographers.


