🌅 Sunrise & Sunset Calculator
Estimate sunrise and sunset times from latitude and date using a simplified solar formula.
How Sunrise and Sunset Are Estimated
This calculator uses a simplified solar declination and hour angle formula based on latitude and day of the year. The solar declination varies from +23.45° to -23.45° over the year. The hour angle determines how long the sun is above the horizon. These are approximate values — actual times vary with longitude, time zone, and atmospheric refraction.
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