Rayong, Thailand
Rayong observes Indochina Time, UTC+7, year-round. The eastern coastal province uses the same clock as Bangkok, with no daylight-saving change in any season.
Rayong, Thailand
Friday, 4 September 2026
UTC+7 · Asia/Bangkok
Time and sun data for Rayong — the largest city of Rayong
The sun in Rayong
Sunrise 06:05 Solar noon 12:16 Sunset 18:26 Daylight 12 h 20 min Night 11 h 40 min Civil twilight 05:44 – 18:47
Thailand · 794 cities · page 1 of 4
Largest cities
- Rayong 106 737
- Klaeng 55 619
- Ban Chang 28 204
- Ban Phe 17 414
- Ban Ko Samet 400
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Current time in Rayong, Thailand
The time shown for Rayong applies in Rayong city, Map Ta Phut, Ban Chang, Klaeng, and the province’s islands. Workplaces, resorts, ports, and local transport all operate under the same national time standard.
Rayong is seven hours ahead of UTC. Add seven hours when translating a UTC schedule, taking care to move to the next date when necessary. This is useful for shipping information, flights, online meetings, and hotel reservations.
The offset remains fixed throughout the year. A foreign partner’s daylight-saving transition may alter the apparent difference, so recurring cross-border schedules should be checked against the relevant date.
Rayong’s industries and beaches keep very different rhythms, but both agree on what the clock says.
Major places in Rayong province
Rayong city is the provincial capital and central administrative reference. The surrounding coast and inland districts include industrial municipalities, beach communities, and active district towns. Prominent names found across the province include:
Rayong, the capital and main city. Map Ta Phut, a major industrial and port town. Ban Chang, a western district town. Klaeng, an eastern district center. Ban Phe, a coastal community and departure point for nearby islands.
All five locations display identical official time. Their position within the province becomes relevant when selecting sunrise, marine weather, or journey information.
Sunrise along Rayong’s coast
The Sun rises in the eastern part of the sky, but its exact compass direction and clock time change through the year. Coastal orientation, headlands, islands, and the observer’s chosen beach can determine what is actually visible.
Rayong city provides a practical general reference. Use Ban Chang, Map Ta Phut, Klaeng, Ban Phe, or an island location for an early boat departure, coastal photograph, fishing trip, or work schedule requiring greater local precision.
Formal sunrise is an astronomical calculation based on date and coordinates. Cloud banks, industrial haze, hills, buildings, trees, and offshore landforms may obscure the horizon, causing direct sunlight to appear later to an observer.
Twilight starts before sunrise and can make the coast navigable or photographable earlier, but visibility is not guaranteed. Marine forecasts and actual sky conditions belong beside the solar time in any practical morning plan.
Questions and answers
- Is Rayong time different from Bangkok?
- No. Rayong and Bangkok both use UTC+7.
- Do Ko Samet and the mainland share the same time?
- Yes. Provincial islands follow the same Thai national clock.
- Why can two Rayong beaches show different sunrise times?
- Their coordinates and horizons differ, producing small variations in the calculated and visible event.