Blue Hour Calculator
See when morning and evening blue hour happen at your location, alongside civil twilight and sunrise/sunset.
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Blue Hour Calculator settings
Times are calculated, not measured, and are typically accurate to within about a minute. Actual sunrise/sunset can shift slightly with elevation and local horizon obstructions.
What is blue hour?
What is blue hour? Blue hour is the period of twilight, just before sunrise or after sunset, when the sun is a few degrees below the horizon and the sky takes on a deep blue tone, roughly when the sun's elevation is between about -6° and -4°.
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