Sunrise, Sunset & Solar Noon
See the whole shape of a day’s light — for a city, your current location, or a coordinate. NOAA solar algorithm, Daylight Saving aware, computed in your browser.
Coordinates
Coordinates
Click anywhere on the map to move the pin. Every time is shown in the local timezone of that coordinate, including Daylight Saving when it applies.
How sunrise and sunset times are calculated
The Earth's axial tilt (≈23.44°) and its elliptical orbit combine to shift sunrise and sunset throughout the year. This calculator solves the solar position equations for the given date and location: it computes the solar declination and the equation of time, then finds the instants the sun's upper limb crosses the horizon (accounting for 0.833° of atmospheric refraction and the sun's apparent radius). Twilight times use the same geometry at -6°, -12° and -18° solar elevation.
Three ways to set your location
- Search — type a city, street address or landmark; it is geocoded from OpenStreetMap data.
- Use my location — your browser asks permission, then supplies your position (GPS on phones, Wi-Fi/IP on laptops).
- Coordinates — enter latitude and longitude in decimal degrees, or click the map to drop a pin.
Frequently Asked Questions
Do I need to know my latitude and longitude?
No. Type a city, address, or landmark into the search box and it is geocoded for you, or tap Use my location to let your browser supply your position. Latitude/longitude fields are still there if you prefer to enter coordinates directly, and you can click anywhere on the map to drop a pin.
What is the curve above the times?
It is the sun’s actual altitude through the day at your location — how high it climbs above the horizon, minute by minute. The band behind it is painted with the sky colour that altitude produces, so night, the three twilights, and full daylight appear at their true widths. A flat summer curve at high latitude or a near-vertical one at the equator is real information, not decoration.
How accurate are the sunrise and sunset times?
The calculation uses the NOAA Solar Calculator algorithm, which is accurate to within ±1 minute for most locations on Earth. Variations come from atmospheric refraction (which bends sunlight over the horizon by about 0.833°) and your actual horizon elevation (mountains, buildings).
What is solar noon?
Solar noon (also called local apparent noon or transit) is the moment the sun reaches its highest point in the sky for the day at your location — the instant a south-facing vertical stick casts its shortest shadow. It is not generally 12:00 on a clock, because clock time is an average across a whole time zone.
What are civil, nautical, and astronomical twilight?
They are the three stages of dawn and dusk defined by how far the sun is below the horizon. Civil twilight (sun 0–6° below): enough light for outdoor activity without artificial light. Nautical twilight (6–12°): the horizon is still visible at sea. Astronomical twilight (12–18°): the sky is dark enough for most astronomical observations.
Does the calculator account for Daylight Saving Time?
Yes. It resolves the timezone of the location you picked (via our own API), then applies the correct local clock time for the chosen date — including DST if it is in effect.
Is my location sent anywhere?
Your browser position is used in the page to centre the map and to look up the timezone for that coordinate. The sun calculation itself runs entirely in your browser — nothing is stored, and there is no sign-up.