# Solarc > Solarc shows sunrise, sunset, twilight, golden hour and live sun position > for any spot on Earth, on an interactive map. Free, no signup, no API key. Built with Next.js 16, MapLibre GL, OpenFreeMap and the astronomy-engine library. Times match the NOAA Solar Calculator within about one minute. ## Core features - Tap any point on the map or search a city - Sunrise, sunset, solar noon, civil/nautical/astronomical twilight, golden hour, blue hour - Live sun position with altitude and azimuth - Sun path overhead with hourly markers and June/December solstice arcs - Daylight wedge showing the azimuth band between sunrise and sunset - Global day/night terminator at globe zoom - Time slider to scrub through any day - Handles polar day, polar night, every IANA time zone, all DST rules ## Programmatic intent pages - [Sunrise today](https://www.solarc.app/sunrise-today): today's sunrise at your location plus major cities worldwide - [Sunset today](https://www.solarc.app/sunset-today): today's sunset at your location plus major cities worldwide - [Sunrise tomorrow](https://www.solarc.app/sunrise-tomorrow): tomorrow's sunrise at your location plus major cities - [Sunset tomorrow](https://www.solarc.app/sunset-tomorrow): tomorrow's sunset at your location plus major cities - [Solar noon calculator](https://www.solarc.app/solar-noon-calculator): exact time the sun crosses the local meridian - [Sunrise near me](https://www.solarc.app/sunrise-near-me): geolocation-based sunrise plus city list - [Sunset near me](https://www.solarc.app/sunset-near-me): geolocation-based sunset plus city list - [Golden hour near me](https://www.solarc.app/golden-hour-near-me): morning and evening golden hour windows for your location ## Seasonal and astronomical pages - [Summer solstice](https://www.solarc.app/summer-solstice): next summer solstice date, time and longest day length - [Winter solstice](https://www.solarc.app/winter-solstice): next winter solstice date, time and shortest day length - [Equinox](https://www.solarc.app/equinox): next March and September equinox times - [Daylight saving time](https://www.solarc.app/daylight-saving-time): next DST transitions worldwide - [Next solar eclipse](https://www.solarc.app/eclipse): next global solar eclipse plus per-city visibility table - [Next lunar eclipse](https://www.solarc.app/lunar-eclipse): next lunar eclipse with type, obscuration, and city visibility (moon above horizon at peak) - [Moon phase tonight](https://www.solarc.app/moon): current moon phase, illumination, moonrise and moonset for your location plus next full and new moon dates - [Next full moon](https://www.solarc.app/full-moon): next full moon date, time UTC and the next 12 upcoming full moons - [Next new moon](https://www.solarc.app/new-moon): next new moon date, time UTC and the next 12 upcoming new moons - [Moonrise tonight](https://www.solarc.app/moonrise-tonight): tonight's moonrise and moonset for your location plus 24 major cities - [Prayer times](https://www.solarc.app/prayer-times): Islamic daily prayer times (Fajr, Dhuhr, Asr, Maghrib, Isha) for any location with 5 calculation methods (MWL, Egyptian, Karachi, ISNA, Umm al-Qura) and both Asr juristic rules - [Qibla direction](https://www.solarc.app/qibla): Great-circle bearing from any location to the Kaaba in Mecca, with distance and cardinal direction - [Hijri calendar](https://www.solarc.app/hijri): Umm al-Qura Hijri ↔ Gregorian calendar converter with today's date in both calendars ## Country pages Solarc has a country index at `/sun/[country]` for each of the 101 countries covered by the city dataset. The page lists every covered city in that country with today's sunrise, sunset, solar noon and day length, computed live in each city's local time zone. Examples: - [United States](https://www.solarc.app/sun/united-states) - [India](https://www.solarc.app/sun/india) - [Brazil](https://www.solarc.app/sun/brazil) - [Saudi Arabia](https://www.solarc.app/sun/saudi-arabia) ## City pages Solarc has 500 static city pages at `/sun/[country]/[city]`. Each city page has the year's solar overview (longest day, shortest day, equinoxes), the current month's sunrise and sunset table, and city-specific FAQs. Examples: - [New York City, United States](https://www.solarc.app/sun/united-states/new-york-city) - [Tokyo, Japan](https://www.solarc.app/sun/japan/tokyo) - [London, United Kingdom](https://www.solarc.app/sun/united-kingdom/london) - [Sao Paulo, Brazil](https://www.solarc.app/sun/brazil/sao-paulo) - [Buenos Aires, Argentina](https://www.solarc.app/sun/argentina/buenos-aires) City pages are organised by country slug (the country name in lowercase with hyphens, derived from the ISO country code). City slugs use the ASCII name in lowercase with hyphens. ## Common questions Solarc answers - What time is sunrise today in [city]? - When is golden hour tomorrow at my location? - How long is the longest day in [city]? - When is the next solar eclipse and where will it be visible? - What is the azimuth of sunrise at my location? - When does daylight saving time start or end in [country]? - How long is the day at the December solstice in [city]? ## Accuracy and tech Solar event times are computed with [astronomy-engine](https://github.com/cosinekitty/astronomy) (MIT) and cross-checked against the [NOAA Solar Calculator](https://gml.noaa.gov/grad/solcalc/) within about one minute. The frontend uses Next.js 16, MapLibre GL 5 and OpenFreeMap vector tiles, so no external API keys are required. ## Privacy and license - No signup required to use any feature - No tracking until you accept cookies (GDPR-compliant consent banner) - Free for personal and commercial use - Site available at https://www.solarc.app