Blue Hour
Blue hour when sun has dipped a certain amount below the horizon. The sky picks up a cool, crisp blue colour before it turns into night. Whilst it’s called the blue hour, it doesn’t actually last an hour. In fact, on average, it lasts around 20 to 40 minutes but can be even shorter. Exactly how long the blue hour lasts on any given day will vary depending on the season and where you are in the world.
