🇧🇷 Sunrise & Sunset in Guarulhos
Brazil • America/Sao_Paulo (UTC-3)
-23.46278000°N, -46.53333000°E
📅 Today: Wednesday, July 29, 2026
🌅 About Sunrise & Sunset in Guarulhos
Sunrise and sunset times in Guarulhos are calculated based on the city's geographic coordinates (-23.46278000°N, -46.53333000°E). The times shown above account for the Earth's rotation, axial tilt, and the city's position within the America/Sao_Paulo time zone. Daylight Saving Time transitions are automatically reflected when applicable.
☀️ Solar Noon
Solar noon in Guarulhos occurs at 15:12 today. This is the moment when the sun reaches its highest point in the sky, casting the shortest shadows. Solar noon rarely coincides with clock noon (12:00 PM) due to the equation of time and the city's longitude within its time zone.
📏 Day Length
Today, the day length in Guarulhos is 11h 0m. Day length changes throughout the year due to the Earth's tilt and orbit around the sun. The longest days occur during the summer solstice, while the shortest days occur during the winter solstice. Equinoxes (around March 20 and September 22) have approximately equal day and night lengths.
🌙 Civil Twilight
Civil dawn in Guarulhos today begins at 09:18, and civil dusk ends at 21:06. Civil twilight is the period when there is enough natural light for most outdoor activities without artificial illumination. This period is commonly used for photography, aviation, and maritime navigation.
🔍 Frequently Asked Questions
What time is sunrise in Guarulhos today?
Sunrise in Guarulhos today is at 09:42. The sun rises in the east and the exact time varies throughout the year due to the Earth's tilt and orbit.
What time is sunset in Guarulhos today?
Sunset in Guarulhos today is at 20:42. Sunset times shift gradually throughout the year, with the latest sunsets typically occurring in summer.
How long is the day in Guarulhos today?
The day length in Guarulhos today is 11h 0m. Day length changes throughout the year — longest days in summer, shortest in winter.
What is solar noon in Guarulhos?
Solar noon in Guarulhos today is at 15:12. This is when the sun reaches its highest point in the sky and casts the shortest shadow.
Does Guarulhos observe Daylight Saving Time?
Guarulhos uses the America/Sao_Paulo time zone. DST observance depends on local regulations. The times shown above reflect the current DST status automatically.
What are civil twilight times in Guarulhos?
Civil dawn in Guarulhos today is at 09:18 and civil dusk is at 21:06. Civil twilight is the period when there is enough natural light for outdoor activities without artificial lighting.