Sunrise & Sunset Calculator
Get precise solar times, dawn/dusk twilight phases, solar noon, and day length for any global location and date.
Selected Location
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Sun Above Horizon
Sunrise
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Civil Dawn: --:--
Solar Noon
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Day Length: --h --m
Sunset
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Civil Dusk: --:--
Astronomical & Twilight Phases Breakdown
Civil Twilight
Sun 0° to -6°
Enough light for outdoor activities without artificial lighting.
Dawn: --
Dusk: --
Nautical Twilight
Sun -6° to -12°
Horizon remains visible at sea; brighter stars become apparent.
Dawn: --
Dusk: --
Astronomical Twilight
Sun -12° to -18°
Sky is nearly dark; optimal for deep-space astronomical observation.
Dawn: --
Dusk: --
Understanding Solar Calculations
This calculator uses standard astronomical algorithms (incorporating solar declination, equation of time, atmospheric refraction, and location latitude/longitude) to determine exact times for solar positions.
Twilight Phase Definitions:
- Official Sunrise / Sunset: The precise moment when the upper edge of the Sun's disk touches the horizon (accounting for 0.833° atmospheric refraction).
- Civil Twilight: Occurs when the center of the Sun is between 0° and 6° below the horizon. Outdoor illumination is generally adequate for daily tasks.
- Nautical Twilight: Occurs when the Sun is 6° to 12° below the horizon. Sailors can navigate using visible horizons and stars.
- Astronomical Twilight: Occurs when the Sun is 12° to 18° below the horizon. Beyond this boundary, sky glow is negligible.