Saturday, June 6, 2026 · Puerto Rico
Sunrise and sunset times in San Juan are computed astronomically based on the city's latitude (18.47°) and longitude (-66.12°). The times above are in AST (UTC-4) local time and use the standard NOAA solar position algorithm.
The day length on 6/6/2026 in San Juan is 13h 11m. This varies throughout the year — typically longest around the summer solstice (June 21 in the Northern Hemisphere, December 21 in the Southern) and shortest around the winter solstice.
Sunrise and sunset are defined as the moment the upper edge of the sun touches the horizon, accounting for atmospheric refraction. "Civil twilight" begins ~30 minutes before sunrise and ends ~30 minutes after sunset.