Sunrise Sunset Calculator

Estimate daylight length from latitude and declination

📖 Hour Angle Method

cos H₀ = −tan φ tan δ. Day length = 2 H₀ / 15 (hours).

Sunrise Sunset Calculator uses standard scientific relationships. Keep units consistent.
Measurements in the field are affected by sensor accuracy and environmental factors.
Use the results as guidance and validate against reference data when possible.

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