Surat Thani, Thailand
Surat Thani observes Indochina Time, UTC+7, year-round. The same clock applies on the mainland and the province’s islands, including Ko Samui and Ko Pha-ngan. Daylight saving time is not used, but sunrise varies by date and location.
Surat Thani, Thailand
Tuesday, 27 October 2026
UTC+7 · Asia/Bangkok
Time and sun data for Surat Thani — the largest city of Surat Thani
The sun in Surat Thani
Sunrise 6:12 AM Solar noon 12:08 PM Sunset 6:03 PM Daylight 11 h 50 min Night 12 h 10 min Civil twilight 5:51 AM – 6:24 PM
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Current time in Surat Thani, Thailand
There is no time-zone change when travelling between Surat Thani city, the ferry ports, and the islands. All schedules use Thailand’s single national time, provided the operator has not explicitly stated another basis.
A Bangkok setting on a phone or computer gives the correct local hour. When coordinating with another country, remember that Surat Thani’s UTC+7 offset is fixed. Any seasonal change in the time difference comes from the other location.
An island ferry may ask you to watch the minutes closely, but it will not ask you to change time zones. Transport connections often combine buses, boats, vans, and flights. Keeping every booking in local Thai time prevents an unnecessary conversion between stages of the same journey.
Main destinations in Surat Thani Province
Surat Thani is a large southern province with a mainland coast on the Gulf of Thailand and several well-known islands. Surat Thani city is the provincial capital and a regional centre for government, trade, education, and onward transport.
Ko Samui contains the province’s biggest island communities and a major tourism economy. Settlements such as Nathon and the areas around Chaweng form important local centres, though municipal boundaries and continuous resort development do not always match a simple idea of one city.
Ko Pha-ngan and Ko Tao are separate island districts or destinations within the province. On the mainland, Phunphin is associated with the principal railway station serving Surat Thani, while Don Sak is a key departure area for ferries. Chaiya is an older district town north of the provincial capital.
Surat Thani city: the provincial administrative centre Ko Samui: a populous island and major visitor destination Phunphin: a mainland transport centre served by the railway Don Sak: a gateway for Gulf ferry services Chaiya: a historic district community north of the capital
Sunrise on the mainland and islands
A province spread across mainland and islands cannot be represented perfectly by one sunrise time. Eastern island locations may see sunrise slightly earlier by the clock than inland places farther west. The visible moment also depends on the horizon, elevation, weather, and surrounding landforms.
On an east-facing beach, an open sea horizon can offer a clear view of sunrise. On the western side of an island, hills may hide the Sun after its calculated rising time. A listed sunrise is therefore an astronomical reference, not a guarantee that direct sunlight will reach a particular hotel, road, or viewpoint at that instant.
Use a location-specific daily listing for boat departures, photography, diving plans, or hikes. Dawn begins before sunrise, while twilight continues after sunset. Marine weather should be checked separately because daylight information says nothing about waves, storms, or safe operating conditions.
Questions and answers
- Is Ko Samui in the same time zone as Surat Thani city?
- Yes. Both observe UTC+7 throughout the year.
- Does Surat Thani use daylight saving time?
- No. Its clocks do not change seasonally.
- Why can island sunrise times differ?
- The islands occupy different positions, and their horizons and terrain affect when the Sun becomes visible.