Sunrise Sunset Calculator
Calculate sunrise, sunset, solar noon, daylight length, and twilight times
Calendar date for the solar times.
Use your browser location, pick a city preset, or enter custom coordinates.
North is positive and south is negative.
East is positive and west is negative.
Local clock offset from UTC on the selected date.
Calculation Steps
How Sunrise And Sunset Are Calculated
Solar times depend on date, coordinates, solar declination, and local clock offset.
Coordinates
Latitude controls seasonal daylight length. Longitude and UTC offset determine the local clock time for solar noon.
Twilight
Civil, nautical, and astronomical twilight use deeper sun angles below the horizon to describe changing outdoor light.
UTC offset
The UTC offset converts solar time into local clock time. Use the offset that applies on the selected date.
Sunrise And Sunset Examples
Compare city presets, custom coordinates, and twilight windows.
New York near the June solstice gets an early sunrise, late sunset, and more than 15 hours of daylight.
High northern latitudes can show 24 hours of daylight around the June solstice.
Civil, nautical, and astronomical twilight help estimate usable outdoor light before sunrise and after sunset.
Sunrise Sunset Calculator FAQ
Answers about coordinates, UTC offsets, twilight, polar day, and planning accuracy.
How accurate is the sunrise and sunset calculator?
It uses standard solar-position equations and is good for planning. Local terrain, buildings, refraction, weather, and exact time-zone rules can shift observed times by a few minutes.
Why do I need a UTC offset?
Coordinates tell the calculator where the sun is relative to Earth, while the UTC offset converts the solar result into local clock time.
What is civil twilight?
Civil twilight is the period when the sun is up to 6 degrees below the horizon. There is usually enough natural light for many outdoor activities.
Why can sunrise or sunset be missing?
Near the polar regions the sun may stay above or below the horizon for an entire day. The calculator reports that status instead of showing a fake time.
Does this include daylight saving time?
The preset offsets are chosen for the example dates shown. For custom dates and locations, set the UTC offset that applies locally on that date.