Golden hour and blue hour

Learning goal

You will be able to explain why the light around sunrise and sunset is warm, directional and low in contrast; you will describe how light travels a longer path through the atmosphere as the sun gets lower, and how this changes its color. You will be able to tell the golden hour from the blue hour after the sun has set, know that the length of these hours changes with place and season, and begin using this light not as a rule but as a tool chosen knowingly.

The question

Imagine walking through a seaside town in the late afternoon. When the sun nears the horizon, the pier suddenly gets crowded: phones go up in the air, couples pose, children run toward the sea. The same pier was almost empty at noon. The sea, the pier and the people are the same. But in that half hour something changed, and everyone felt it.

Why does everyone shoot at sunset? Because when the sun gets low, light warms, tilts to the side and softens its contrast; when these happen at the same time, even an ordinary scene can be transformed. In this lesson we will see the physics of this stretch of time photographers call the "golden hour", the blue hour that follows it, and how you can use this light for more than the postcard everyone takes.

Context

In the previous lessons you studied, one by one, where light comes from, the edge of its shadow and its tone. In the golden hour all of these settle into a gentle balance at the same time. The noon sun strikes from above, hard and contrasty; shadows are short and dark. Toward evening, as the sun gets lower, light tilts to the side, draws long shadows, turns orange and the shadows open up. You have already started observing this change in your light journal.

One reason the golden hour is so loved is ease: beautiful light arrives almost by itself and asks little effort of the photographer. But the same ease also sets a trap. When everyone shoots the same sun at the same time in the same direction, the photos look alike. In this lesson, along with understanding the golden hour, we will talk about how you can use it differently for your own photo, and about how the other hours have their own value too.

Simple explanation

Why does light warm when the sun gets low?

Before sunlight reaches the earth, it passes through the atmosphere. The air molecules in the atmosphere scatter the blue part of light much more than the red part; this atmospheric scattering is also why the sky looks blue during the day. When the sun is overhead, light passes through a thin layer of the atmosphere and little blue is scattered; light arrives close to white. As the sun nears the horizon, light travels a much longer path through the atmosphere. Along this long path most of the blue is scattered away, and in the direct light that reaches us yellow, orange and red dominate.

The same long path also weakens light. As direct sunlight drops, the scattered light of the sky fills the scene from every side and the shadows open up. That is why golden hour light has much less contrast than noon light. It is good to know a subtlety here: because the sun is still a small disc in the sky, the edges of shadows stay relatively sharp. Golden hour light isn't like the wide, scattered light of a cloudy day; it is a directional but gentle light. What softens is not the edge of the shadow but the difference between light and dark.

How do you tell the golden hour from the blue hour?

The golden hour describes the short time when the sun is close to the horizon, after sunrise and before sunset. The light from this low sun is warm, comes from the side, draws long shadows and brings out textures. The blue hour, on the other hand, begins after the sun has gone below the horizon, or just before it rises. There is no direct sunlight anymore; the only thing lighting the scene is the sky itself. Because the sky is a giant, scattered source, the light is very soft, shadows almost disappear and everything is wrapped in a deep blue. In cities, when the streetlights and windows come on, warm orange lights and the cool blue sky meet in the same frame.

How long these hours last isn't fixed. The angle at which the sun sinks toward the horizon changes with where you are and with the season. In places near the equator the sun sinks at a steep angle and these hours are very short; as you go north or south, the sun approaches the horizon at a shallower angle and these hours get longer. Even in the same city there is a difference between summer and winter. That is why, instead of trusting rules of thumb such as "the golden hour lasts an hour", the safest way is to check an app that shows sunrise and sunset times where you are, and to arrive early.

How do you use the golden hour better?

In the golden hour most people turn toward the sun and photograph the setting sun. This is a natural reaction, but the part of the scene that is really lit is often behind you. When you turn your back to the sun, the buildings, trees and faces in front of you are lit by warm light coming from the side or the front. When you turn toward the sun and shoot, you are working with backlight: subjects can turn into silhouettes, or a glowing edge can appear around them. Both are valuable; what matters is choosing one knowingly.

When you photograph people, the warm light of the golden hour livens up the skin on many skin tones; it can bring out pink and peach tones on light skin and golden and copper glints on dark skin. But the light fades fast. If you are shooting into backlight and the sky behind is bright, the face easily stays in darkness; on a dark-skinned face this loss shows sooner. Exposing for the face, turning the face slightly toward the sun, or putting a white surface in front of it to reflect light back keeps the detail of the face. In the blue hour, because the light drops so much, faces darken quickly; moving next to a streetlight or the light of a shop window is a good solution.

Visual evidence

Imagine photographing an old fisherman mending his nets on a pier three times. In the noon frame the sun is straight overhead. The fisherman's hat has cast a thick, dark shadow over his face; his eyes can't be seen. The sea is like a bright white sheet, and the colors of the nets are faded. The frame is sharp but flat and hard.

In the golden hour you are in the same spot; the sun is close to the horizon, behind you and a little to your left. The fisherman's face is lit by a warm light leaning toward orange; his hat now casts its shadow not on his face but on his shoulder. His wrinkles, the veins on his hands and every knot of the net stand out in the light coming from the side. The copper glints in his dark skin have come alive, and the shadows are open and soft. The planks of the pier draw long, thin shadows behind him.

In the blue hour the sun has set. The fisherman's face and the pier are wrapped in a deep blue, and the shadows have almost disappeared. Behind him, the windows of the town have lit up as orange points; cool blue and warm orange sit in the same frame. The fisherman's face has started to darken; when he moves a little closer to the pier lamp beside him, a small, warm island of light appears on his face. The same fisherman, the same pier; three hours, three different photos.

Common mistakes

Summary

At sunset, light warms because it travels a long path through the atmosphere, tilts to the side thanks to the low sun, and loses contrast because the scattered light of the sky fills the shadows; the character of the golden hour comes from this. The blue hour that comes after the sun sets offers a soft, blue light that comes only from the sky; the length of both changes with place and season, which is why you need to arrive early and look in every direction.

Mini assignment

This assignment is the golden and blue hour page of your light journal.

1. Find out today's sunset time where you are, and half an hour before it, go to the subject you chose for your light journal.
2. Photograph your subject in the golden hour once facing the sun and once with your back to the sun.
3. After the sun sets, wait for the blue hour and photograph the same subject once more.
4. Put the three frames next to your noon frame and note the change in the color, direction and contrast of the light.

Check yourself

• Did you find out the sunset time in advance and arrive early?
• Were you able to describe the difference between the frames you shot facing the sun and with your back to it?
• Did you wait for the blue hour and record the light turning blue?

Glossary

Mini quiz

1. Why does light warm when the sun nears the horizon?

• A) Because the sun really gets hotter
• B) Because light travels a long path through the atmosphere, so blue is scattered away and yellow-red dominates
• C) Because clouds paint the light orange
• D) Because the sea reflects the light

2. Why are the edges of shadows still relatively sharp in the golden hour?

• A) Because the sun is still a small disc in the sky
• B) Because the sky is completely dark
• C) Because the light comes entirely from clouds
• D) Because the camera sharpens shadows

3. What lights the scene in the blue hour?

• A) Direct sunlight
• B) Only streetlights
• C) Moonlight
• D) The scattered light of the sky while the sun is below the horizon

4. Which is true about the length of the golden hour?

• A) It is exactly one hour everywhere
• B) It is the same in every season
• C) It changes with place and season
• D) It exists only in summer

Answers

1. B — The light of a low sun travels a long path through the atmosphere; because air molecules scatter blue more, warm colors dominate in the direct light that reaches us.
2. A — The edge of a shadow is decided by the apparent size of the source; even near the horizon the sun stays a small disc in the sky, so even though contrast drops, the edge stays sharp.
3. D — After sunset there is no direct light; the sky, a giant and scattered source, lights the scene with a soft light leaning toward blue.
4. C — The angle at which the sun sinks toward the horizon changes with latitude and season; near the equator these hours are short, and toward the poles they are longer.

Summary card

• Low sun: long path through the atmosphere → blue scatters → light warms.
• Golden hour: warm, from the side, long shadows, low contrast; edges still relatively sharp.
• Blue hour: after sunset, soft blue light coming only from the sky.
• The length changes with place and season; find out the time, arrive early.
• Don't only look at the sun; turn to the lit subjects behind you too.

Bridge to the next lesson

You have seen how the golden and blue hours work under a clear sky. But what if the sky is covered with cloud, a drizzle is falling or fog has settled? Many people leave their camera at home on days like these. The next lesson questions this habit: is cloudy weather bad weather? There you will see that a cloud works like a giant light diffuser, and that fog, rain and storms can each be an opportunity too.