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Climate & Environment

Sunrise & Sunset Time Calculator

Calculate accurate sunrise, sunset, solar noon, and twilight times for any location and date using astronomical algorithms.

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Find Sunrise and Sunset Times Anywhere

Plan your day with accurate sunrise and sunset times. Our calculator uses astronomical algorithms to determine exact times for any location on Earth, any day of the year.

How Are Sunrise and Sunset Calculated?

Sunrise and sunset times depend on your latitude, longitude, date, and local timezone. The sun's position changes throughout the year due to Earth's axial tilt and orbital position. Our calculator accounts for atmospheric refraction which bends light and makes the sun visible slightly before it actually rises above the horizon.

Hour Angle Formula

cos(ω) = [cos(z) - sin(φ)sin(δ)] / [cos(φ)cos(δ)]

Why Track Sunrise and Sunset?

Photography Planning

Capture golden hour and blue hour for stunning photos.

Outdoor Activities

Plan hikes, fishing, and other activities around daylight.

Energy Management

Optimize solar panel positioning and energy usage.

How to Use the Calculator

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Practical Applications

Travel Planning

Know daylight hours at your destination.

Religious Observances

Determine prayer times and fasting periods.

Astronomy

Plan stargazing sessions after astronomical twilight.

Agriculture

Schedule planting and harvesting around daylight.

Frequently Asked Questions

Our calculations are typically accurate within 1-2 minutes. Factors like local terrain (mountains, buildings) and atmospheric conditions can affect actual visible sunrise/sunset times.

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