Asia · South-Eastern Asia · Sovereign state
Current time in Thailand
A single time zone at UTC+07:00.
Thursday, October 15, 2026
About Thailand's time
A single time zone.
Thailand uses a single time zone, UTC+07:00 (ICT), known as Indochina Time, and does not observe daylight saving time. Its time has remained stable and straightforward for over a century.
Major cities
Cities of Thailand.
History
How Thailand keeps time.
Before 1920, Thailand kept Bangkok Mean Time, about UTC+06:42. In 1920, the government aligned the country with the international time zone system by adopting Indochina Time at UTC+07:00, partly to simplify coordination across regions and with neighboring colonial territories. This offset has remained unchanged since. Unlike many countries, Thailand has never observed daylight saving time, reflecting its tropical location where daylight hours vary little throughout the year. The choice of a single time zone has provided consistency for administration and commerce, and the country has made no major shifts since the 1920 change.
Did you know?
Things about Thailand's time.
Thailand’s use of a single time zone simplifies travel and communication across the country—from Bangkok to Chiang Mai or Phuket, there’s never a time difference to adjust for. Being near the equator, daylight hours are relatively constant, making daylight saving time unnecessary, so the clock doesn’t change at all during the year. The country’s time zone also aligns it closely with several neighboring countries, such as Cambodia, Laos, and Vietnam, facilitating regional business and travel within Indochina. Nearly all of Thailand lies west of 105°E, the meridian UTC+07:00 is based on, so clocks run slightly ahead of the sun, by up to about half an hour in the far west.
Convert
Thailand to the world's clocks.
Frequently asked questions
Common questions about Thailand's time zone, daylight saving rules, and how to handle it in software. Can't find what you need? Email [email protected].
- Does Thailand observe daylight saving time?
- No, Thailand has never observed daylight saving time. The country uses Indochina Time (UTC+07:00) year-round.
- What time zone is Thailand in?
- Thailand uses a single time zone, Indochina Time (ICT), which is UTC+07:00.
- Is the time the same across all of Thailand?
- Yes, Thailand has only one official time zone. From Bangkok to Chiang Mai or Phuket, the time is always the same.
- When did Thailand adopt its current time zone?
- Thailand officially adopted Indochina Time, UTC+07:00, in 1920, replacing its earlier local mean time based on Bangkok's longitude.
- Are there any territories of Thailand that use a different time zone?
- No. All regions of Thailand use the same time zone, Indochina Time (UTC+07:00).
- How does Thailand’s time zone compare to its neighbors?
- Thailand shares the same UTC+07:00 offset as Cambodia, Laos, and Vietnam, making regional coordination straightforward.
- Has Thailand ever changed its time zone?
- The country transitioned from local mean time to Indochina Time in 1920 and has kept the same offset since.
- Why doesn’t Thailand use daylight saving time?
- Thailand is near the equator, where daylight hours are relatively constant throughout the year, so there is no practical need for daylight saving time.
Source: IANA tzdb2026d · Reviewed
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