Look up the exact time darkness falls in Surabaya, Jawa Timur for any date of the year. Sunset times, civil dusk, full twilight schedule, and daylight changes.
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Today — Thursday, November 5, 2026
It gets dark at 05:45 PM in Surabaya
Sunrise
05:01 AM
Sunset
05:24 PM
Gets Dark
05:45 PM
Day Length
12h 23m
Surabaya is gaining 21s of daylight per day
Darkness arrives earliest on May 21 at 5:40 PM and latest on January 27 at 6:17 PM, a swing of 36 min across the year.
The longest day brings 12 h 33 min of daylight and the shortest just 11 h 42 min.
Close to the equator the sun drops almost straight down, so twilight in Surabaya is brief all year: about 21 min from sunset to darkness.
In Surabaya, on 262 days it is dark before 6 pm.
Surabaya sits toward the eastern side of its time zone, so the sun runs about 33 min ahead of the clock. That brings sunsets earlier than in towns further west.
Surabaya lies 806 km (501 miles) south of the equator at 7.25°S.
This page shows exactly when it gets dark in Surabaya, Jawa Timur, Indonesia for any day of the year. The interactive tool above lets you pick any date to see the precise sunset time, civil dusk (when true darkness begins), and the full twilight schedule including nautical and astronomical dawn and dusk.
Surabaya is located at latitude -7.25° and longitude 112.74°. The time darkness falls changes throughout the year based on Earth's axial tilt — earlier in winter, later in summer. Use the date picker above to check any date.
Whether you're planning trick-or-treating for Halloween, a fireworks display, an outdoor wedding, or an evening event in Surabaya, knowing the exact time darkness falls is essential. This tool calculates civil dusk — when the sun drops 6 degrees below the horizon — for any date at Surabaya's exact coordinates.
The site also shows the daily daylight delta — how much daylight Surabaya is gaining or losing each day — and a year-long daylight curve showing how day length rises and falls across all 365 days.