4.8 out of 5 — 215558 votes

Riau Islands, Indonesia

Riau Islands follows Western Indonesia Time, or WIB, at UTC+7. Batam, Tanjung Pinang, and the province’s outer island communities use this offset year-round.

Batam, Indonesia

Saturday, 5 September 2026

UTC+7 · Asia/Jakarta

Time and sun data for Batam — the largest city of Riau Islands

The sun in Batam

Sunrise 6:00 AM Solar noon 12:04 PM Sunset 6:08 PM Daylight 12 h 08 min Night 11 h 52 min Civil twilight 5:40 AM – 6:29 PM

Indonesia · 518 cities · page 1 of 3

Largest cities

All cities — page 1

Current time in Riau Islands, Indonesia

A single official clock applies across the scattered province. Ferries and flights may cross international or Indonesian time-zone boundaries, so travelers should check the zone printed for each departure and arrival rather than judging by the short distance on a map.

WIB is seven hours ahead of Coordinated Universal Time. Riau Islands shares its clock with Jakarta and mainland Riau. Nearby Singapore and Malaysia use a different official offset, making careful conversion important for cross-border journeys, calls, and bookings.

On an island itinerary, the sea crossing may be brief while the clock arithmetic deserves the longer look.

Time in Batam, Tanjung Pinang, and the islands

Batam is the province’s largest city and its busiest urban and industrial center. Tanjung Pinang, on Bintan Island, is the provincial capital. Other notable communities are distributed through the Bintan, Karimun, Lingga, Natuna, and Anambas island groups.

Use WIB for all local appointments in Batam. Keep the same time when traveling from Batam to Tanjung Pinang. Apply UTC+7 to Karimun, Natuna, Anambas, and Lingga destinations. Recheck the arrival zone before an international ferry or flight.

The islands cover a broad maritime area, but the official time does not change between them. Longitude still affects the position of the Sun, so identical clock readings can correspond to slightly different stages of morning or evening.

Sunrise in an island province

Eastern islands generally experience sunrise earlier by the clock than western islands. A sunrise value for Batam is therefore not exact for distant Natuna or Anambas locations. Selecting the actual island or nearest settlement provides a more useful result.

Open sea horizons can offer a clear view of sunrise, but the viewing direction matters. A beach facing west will not provide the same sunrise view as an unobstructed eastern shore. Islands, headlands, buildings, cloud, and haze can also conceal the Sun after its calculated rising time.

The province’s tropical latitude keeps annual changes in day length moderate. Even so, sunrise and sunset drift over the calendar. Ferry passengers, anglers, photographers, and boat crews should use a date-specific local calculation instead of assuming that dawn occurs at one permanent hour.

Questions and answers
What time zone is Batam in?
Batam uses Western Indonesia Time, abbreviated WIB, at UTC+7.
Is Tanjung Pinang on the same time as Batam?
Yes. Both cities and the rest of Riau Islands province use WIB.
Does Riau Islands observe daylight saving time?
No. Its UTC+7 offset stays unchanged throughout the year.

Related tools and information

All pages