1. What is the Sunset Calculator 2025?

The Sunset Calculator 2025 provides accurate sunset times for any location on Earth during the year 2025. It uses astronomical algorithms to calculate the precise time when the sun disappears below the horizon.

2. How Does the Calculator Work?

The calculator uses astronomical calculations:

Where:

• \( lat \) — Latitude in degrees (-90 to 90)
• \( lon \) — Longitude in degrees (-180 to 180)
• \( date \) — Date in 2025

Explanation: The calculation accounts for the Earth's tilt, orbital position, and observer's location to determine sunset time.

3. Importance of Accurate Sunset Times

Details: Knowing sunset times is crucial for photography, religious observances, outdoor activities, and understanding daylight patterns.

4. Using the Calculator

Tips: Enter valid latitude (-90 to 90), longitude (-180 to 180), and select a date in 2025. The calculator will provide the sunset time in local time.

5. Frequently Asked Questions (FAQ)

Q1: Why does sunset time vary by location?
A: Sunset times vary due to Earth's curvature and the observer's latitude/longitude position.

Q2: How accurate are these calculations?
A: Astronomical calculations are typically accurate to within a minute for most locations.

Q3: Does this account for daylight saving time?
A: Results are in standard time. Add 1 hour during daylight saving periods if applicable.

Q4: What about atmospheric refraction?
A: The calculation includes standard atmospheric refraction (34 arcminutes).

Q5: Why only 2025 dates?
A: This calculator is specifically configured for the astronomical events of 2025.