Sunrise Calculator
Free calculate sunrise time for any location and date based on latitude, longitude, and time zone. Get instant, accurate results with our easy-to-use calculator.
Input Parameters
Degrees (-90 to 90, negative for South)
Degrees (-180 to 180, negative for West)
UTC offset (e.g., -5 for EST, +1 for CET)
Results
Enter parameters to calculate sunrise time
Sunrise Calculation
Formula
Sunrise occurs when solar altitude = 0°
The calculation accounts for:
- • Solar declination
- • Latitude
- • Atmospheric refraction (~0.83°)
- • Solar disk size (~0.27°)
Factors Affecting Sunrise
- • Latitude: Higher = later sunrise in summer
- • Season: Varies with solar declination
- • Elevation: Higher = earlier sunrise
- • Time zone: Affects local time