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How to Calculate Sunrise Sunset

Find sunrise and sunset times for any location and date.

The Formula

Solar position equations

The sunrise sunset formula uses the mathematical relationship: Solar position equations. Each variable in the formula represents a measurable quantity that affects the final result.

Step-by-Step Method

  1. 1Identify all input values needed for the sunrise sunset calculation.
  2. 2Substitute your known values into the formula: Solar position equations.
  3. 3Perform the arithmetic operations in the correct order (PEMDAS/BODMAS).
  4. 4Check that your result has the correct units and is within a reasonable range.
  5. 5Verify using the interactive Sunrise Sunset Calculator to confirm your answer.

Related Topics

sunrisesunsetsolar

Use the Interactive Calculator

Skip the manual math — get instant results with our free Sunrise Sunset calculator.

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