Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Earthquake Distance Calculator

Estimate the distance from a seismograph station to an earthquake epicenter using the arrival time difference between P and S seismic waves. Useful for seismology education and rapid preliminary epicenter location.

P Wave Arrival Time (seconds)

S Wave Arrival Time (seconds)

Fill in the required fields to see your result.

Geography

Sunrise Sunset Time Calculator

Estimates local sunrise, sunset times, and total daylight hours for any latitude, longitude, and date. Ideal for photographers planning golden hour, gardeners, hikers, and solar energy assessments.

Latitude (°)

Longitude (°)

Day of Year (1-365)

Time Zone Offset

Elevation (m)

Fill in the required fields to see your result.

Key differences

	Earthquake Distance Calculator	Sunrise Sunset Time Calculator
Category	Geography	Geography
Inputs required	2	5
Result	Epicenter Distance (km)	Sunrise Time (:00)
What it does	Estimate the distance from a seismograph station to an earthquake epicenter using the arrival time difference between P and S seismic waves. Useful for seismology education and rapid preliminary epicenter location.	Estimates local sunrise, sunset times, and total daylight hours for any latitude, longitude, and date. Ideal for photographers planning golden hour, gardeners, hikers, and solar energy assessments.