Indochina Time (ICT)
Bangkok operates on Indochina Time (ICT). This time zone does not observe Daylight Saving Time.
Time Zone: Indochina Time (ICT) — Standard Offset: UTC+7 (ICT) — DST: Not observed
Country: Thailand
This city does not observe Daylight Saving Time. The UTC offset remains constant year-round, which simplifies international scheduling.
Bangkok operates on ICT (UTC+7), shared with Vietnam, Laos, and Cambodia. Thailand does not observe DST. As Southeast Asia's most visited city and a major business hub, Bangkok bridges the time zones between South Asia (India at UTC+5:30) and East Asia (Singapore/Hong Kong at UTC+8). The Stock Exchange of Thailand (SET) trades from 10:00 AM to 4:30 PM ICT.
Bangkok is consistently ranked among the world's most visited cities, receiving over 20 million international visitors annually. The city's tourism, hospitality, and medical tourism industries operate on ICT, and international travelers need to convert from UTC+7. Bangkok is 7 hours ahead of London in winter (6 during BST), 12 hours ahead of New York (11 during EDT).
Bangkok's UTC+7 puts it 1 hour behind Singapore and Hong Kong, making intra-ASEAN coordination easy. A 9 AM Bangkok meeting is 10 AM Singapore — seamless. For Chinese business partners, the 1-hour gap is equally manageable. Thailand's manufacturing sector, particularly automotive and electronics, coordinates with Japanese partners just 2 hours ahead (JST, UTC+9).
The US-Bangkok gap is significant: 12 hours from the East Coast during standard time. The practical overlap relies on extremes: 8 AM Bangkok = 8 PM ET the previous night, or 5 PM Bangkok = 5 AM ET. For European coordination, afternoon Bangkok overlaps with morning London — 2 PM ICT = 7 AM GMT. Bangkok's digital nomad and expat community has created a culture of flexible scheduling that accommodates these wide time zone gaps.