Açu

Sunrise and sunset in Açu

Today’s sunrise, sunset and twilight in Açu, in local time. At 5.6° S, the day lasts from 11 h 48 min at the winter solstice to 12 h 27 min at the summer solstice.

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Today · worked out at

Wednesday, October 21: sunrise at 05:04, sunset at 17:19.

Day length 12 h 15 min, 18 s longer than yesterday.

Solar noon at 11:12, with the Sun 85° above the horizon.

Times are Açu time (GMT-3).

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Twilight and golden hour today

TodayMorningEvening
Astronomical twilight03:5418:30
Nautical twilight04:1818:05
Civil twilight04:4317:41
Sunrise and sunset05:0417:19
Golden hour05:04–05:3216:51–17:19

Each twilight begins at the morning time and ends at the evening one.

The year in Açu

  • Longest day: December 21, 12 h 27 min, from sunrise at 05:12 to sunset at 17:39.
  • Shortest day: June 21, 11 h 48 min, from sunrise at 05:35 to sunset at 17:23.

Sunrise and sunset on the 21st of each month, 2026

DateSunriseSunsetDay length
January 2105:2717:5012 h 23 min
February 2105:3317:4812 h 15 min
March 2105:3117:3712 h 06 min
April 2105:2717:2411 h 57 min
May 2105:2817:1911 h 51 min
June 2105:3517:2311 h 48 min
July 2105:3817:2911 h 51 min
August 2105:3217:2911 h 57 min
September 2105:1717:2312 h 06 min
October 2105:0417:1912 h 15 min
November 2105:0117:2512 h 24 min
December 2105:1217:3912 h 27 min

Good to know

  • Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
  • Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
  • Worked out when the page loads from NOAA’s solar equations, for 5.6° S, 36.9° W, and accurate to about a minute.

How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets

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