What time zone is Ulu Siau in?

Ulu Siau currently uses Central Indonesian Time (WITA). Its IANA time zone is Asia/Makassar.

What is the UTC offset in Ulu Siau right now?

Ulu Siau is currently UTC+08:00

Current Time in Ulu Siau, Kabupaten Siau Tagulandang Biaro, North Sulawesi, Indonesia

4:45:36 AM

04:45:36

Wednesday, September 16, 2026

WITA (Central Indonesian Time) · UTC+08:00

Asia/Makassar

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Time zone details

Ulu Siau does not observe daylight saving time in 2026

Daylight in Ulu Siau

Sunrise5:29 AMSolar noon11:33 AMSunset5:37 PM

Clock change statusNo clock changes are scheduled for Ulu Siau in the next 12 monthsView schedule Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: Indonesia
Administrative area: North Sulawesi
District: Kabupaten Siau Tagulandang Biaro
Place type: City or town
Country currency: Indonesian Rupiah (IDR)

Practical

Languages: Indonesian, English, Dutch, Javanese
Dialing code: +62
Elevation: Approximately 1 m (DEM estimate)

Geography

Geographic coordinates: 2° 43' N / 125° 24' E

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Clock changes in Ulu Siau

2026

No clock or time-zone designation changes in 2026

Future clock changes, 2027–2030

Sun & Moon details

Sunrise: 5:29 AM
Solar noon: 11:33 AM
Sunset: 5:37 PM
Daylight duration: 12 hr 07 min9 sec shorter than the previous day

Civil twilight: 5:08 AM – 5:57 PM
Nautical twilight: 4:44 AM – 6:21 PM
Astronomical twilight: 4:20 AM – 6:45 PM

Waxing CrescentMoon illumination25%

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Wednesday, September 16, 2026

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Sun

Sunrise: 5:29 AM (east, 87.2°)
Sunset: 5:37 PM (west, 272.6°)
Day length: 12 hr 07 min9 sec shorter than the previous day
Solar noon: 11:33 AM (89.9° altitude)

Civil twilight

Dawn to dusk: 5:08 AM – 5:57 PM

Additional twilight

Nautical dawn to dusk: 4:44 AM – 6:21 PM
Astronomical dawn to dusk: 4:20 AM – 6:45 PM

Moon

Phase: Waxing Crescent (25% illuminated)
Moonrise: 9:16 AM (southeast, 113.4°)
Moonset: 9:30 PM (southwest, 245.1°)
Previous principal phase: New Moon — Friday, September 11, 2026 at 11:27 AM
Next principal phase: First Quarter — Saturday, September 19, 2026 at 4:44 AM

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local date	Sunrise	Sunset	Day length	Daily change
Wednesday, September 16	5:29 AM	5:37 PM	12 hr 07 min	9 sec shorter than the previous day
Thursday, September 17	5:29 AM	5:36 PM	12 hr 07 min	9 sec shorter than the previous day
Friday, September 18	5:29 AM	5:36 PM	12 hr 07 min	9 sec shorter than the previous day
Saturday, September 19	5:28 AM	5:35 PM	12 hr 07 min	9 sec shorter than the previous day
Sunday, September 20	5:28 AM	5:35 PM	12 hr 07 min	9 sec shorter than the previous day
Monday, September 21	5:28 AM	5:34 PM	12 hr 07 min	9 sec shorter than the previous day
Tuesday, September 22	5:27 AM	5:34 PM	12 hr 07 min	8 sec shorter than the previous day

Weather forecast for Ulu Siau

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Plan around Ulu Siau

Upcoming national public holidays in Indonesia

Fri, Dec 25, 2026Christmas Day
Fri, Jan 1, 2027New Year's Day
Tue, Jan 5, 2027Laylat al-Mi'raj

Frequently asked questions

What time zone is Ulu Siau in?: Ulu Siau currently uses Central Indonesian Time (WITA). Its IANA time zone is Asia/Makassar.
When is the next clock change in Ulu Siau?: No clock changes are scheduled for Ulu Siau in the next 12 months
Does Ulu Siau observe daylight saving time?: Ulu Siau does not observe daylight saving time in 2026
What is the UTC offset in Ulu Siau right now?: Ulu Siau is currently UTC+08:00