Blue hour photography: timing, settings, and a simple plan

When is blue hour?

In the evening, blue hour follows sunset; in the morning, it comes before sunrise. It is a descriptive photography term, not a promise of sixty minutes or a particular sky color. Next Light uses the interval when the Sun is between 6° and 4° below the horizon. Other calculators may use different boundaries.

Choose your place and date in the light calculator. Read the displayed local time zone, especially when planning a trip. The calculation describes the Sun’s position. Clouds, haze, buildings, and hills still determine the light reaching your scene.

A simple evening shooting plan

1. Before sunset: find one foreground and one background. A waterfront, lit window, or street corner gives you something to compose around.
2. As the light changes: make a reference frame, then repeat the composition every few minutes. Compare how much detail remains in the sky and how bright the lamps appear.
3. When the balance looks right: refine the framing. Avoid spending the whole window moving between locations.
4. Before packing up: check sharpness at full size and make one final frame. A good-looking thumbnail can hide camera movement.

Choose settings for the subject

There is no single blue hour exposure. For a stationary scene, stabilize the camera and try a low ISO with an aperture that keeps the important foreground and background in focus. Let shutter speed supply the remaining exposure. Use a timer if pressing the shutter shakes your setup.

For people or moving leaves, start with a shutter speed that keeps the subject sharp, then adjust aperture and ISO. A longer exposure may brighten the scene while also blurring movement. On a phone, compare the normal camera and night mode results; a long night-mode capture can change moving subjects.

Keep the blue believable

Check bright signs and windows as well as the sky. If highlights lose detail, reduce exposure and review again. For a sequence, keep white balance consistent so neighboring frames do not jump between warm and cool. Make modest edits and compare with your first reference frame before increasing saturation.

If the evening is completely overcast, look for reflections, silhouettes, or a smaller scene with interesting artificial light. The calculated window still occurs, but the photograph may feel very different from a clear-sky blue hour.

Blue hour or golden hour?

Choose golden hour when your idea depends on low sunlight. Choose blue hour when the relationship between twilight and artificial light matters. You can plan both in one outing by picking a location that works in either direction.