India to Bangkok
+1h 30mIndia
ISTSOURCEBangkok
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and ICT on the World Map
The map below highlights the IST (India Standard Time) and ICT (Indochina Time) timezone regions across the globe.
IST – India Standard Time
UTC+05:30India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.
- •India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
- •India uses a single time zone despite spanning 30° of longitude.
- •IST is one of only a handful of time zones with a 30-minute offset.
- •IST is the most populous single time zone in the world with over 1.4 billion people.
- •The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •Bangkok is one of the most visited cities in the world.
- •ICT is 12 hours ahead of EST.
- •Thailand, Vietnam, and Cambodia all share ICT.
About Bangkok
WikipediaBangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.
Bangkok is one of the world's most visited cities, with over 22 million visitors annually.
Understanding the +1h 30m Gap: India vs Bangkok
India runs on India Standard Time (IST) at UTC+05:30. Bangkok runs on Indochina Time (ICT) at UTC+07:00. That puts India 1 hour 30 minutes ahead of Bangkok — a difference of +1h 30m at the current offsets.
In practice, when it is 9:00 AM in India it is 10:30 AM in Bangkok. Midnight in India is 1:30 AM in Bangkok. Neither zone observes daylight saving time, so the offset between them stays constant all year.
India to Bangkok time conversion table
| India (IST) | Bangkok (ICT) | Day |
|---|---|---|
| 12:00 AM | 1:30 AM | same day |
| 6:00 AM | 7:30 AM | same day |
| 7:00 AM | 8:30 AM | same day |
| 8:00 AM | 9:30 AM | same day |
| 9:00 AM | 10:30 AM | same day |
| 12:00 PM | 1:30 PM | same day |
| 3:00 PM | 4:30 PM | same day |
| 5:00 PM | 6:30 PM | same day |
| 6:00 PM | 7:30 PM | same day |
| 9:00 PM | 10:30 PM | same day |
Why people convert India to Bangkok time
- Scheduling a call from India to Bangkok: a 10:00 AM start in India lands at 11:30 AM in Bangkok, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both India and Bangkok are inside the 9-to-5 working day between 9:00 AM and 3:30 PM IST time (10:30 AM–5:00 PM ICT). That is roughly 6 hours 30 minutes of usable overlap.
- Coordinating a India-based team with Bangkok contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a +1h 30m gap is not.
- Block 9:00 AM–3:30 PM IST as the recurring meeting window if you work primarily from India and need Bangkok colleagues present.
About IST (India Standard Time)
India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.
About ICT (Indochina Time)
Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.
Best time to call between India and Bangkok
Both India and Bangkok sit inside the 9 AM – 5 PM working day between 9:00 AM–3:30 PM IST, which is 10:30 AM–5:00 PM ICT. That gives roughly 6 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
India and Bangkok share 6 hours of working-hours overlap (9:00 AM–3:30 PM IST), so scheduling a live meeting is straightforward.
India is 1 hour 30 minutes ahead of Bangkok (IST UTC+05:30 → ICT UTC+07:00). The shared working window is 9:00 AM–3:30 PM IST. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between India and Bangkok?
India (IST, UTC+05:30) is 1 hour 30 minutes ahead of Bangkok (ICT, UTC+07:00). The gap is currently +1h 30m.
How do I convert India time to Bangkok time?
Add +1h 30m to India local time. For example, 9:00 AM in India is 10:30 AM in Bangkok.
What time is it in Bangkok right now?
Bangkok uses ICT at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h 30m offset from India.
What is the best time to call Bangkok from India?
Call between 9:00 AM and 3:30 PM IST — that maps to 10:30 AM–5:00 PM ICT and keeps both parties inside the working day.
Which is ahead, India or Bangkok?
India is 1 hour 30 minutes ahead of Bangkok. When it is 12:00 PM in India it is 1:30 PM in Bangkok.
Do India and Bangkok use different time zones?
India (India) uses IST at UTC+05:30, while Bangkok (Thailand) uses ICT at UTC+07:00. The IANA identifiers are Asia/Kolkata and Asia/Bangkok.
Does daylight saving time affect the India–Bangkok difference?
Neither zone observes daylight saving time, so the +1h 30m offset between India and Bangkok is fixed all year.
Which other cities share India's time zone?
IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.
Which countries use IST, India's zone?
IST is used in India, Sri Lanka.
Is there a day difference between India and Bangkok?
Not normally. The +1h 30m gap only pushes the date over for late-evening times.
What is the time difference between India and Bangkok?
Bangkok is +1h 30m from India.
What timezone is India in?
India operates on its local timezone.
What timezone is Bangkok in?
Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.
What are the business hours in Bangkok?
Standard business hours in Bangkok are 8:30 AM - 5:30 PM ICT.
Which countries use IST (India Standard Time)?
IST is used in India, Sri Lanka.
Does IST observe daylight saving time?
No, IST does not observe daylight saving time and remains at UTC+05:30 year-round.
What are some interesting facts about IST?
India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT. India uses a single time zone despite spanning 30° of longitude.
Which cities are in the ICT timezone?
Major cities in the ICT timezone include Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
What is the UTC offset for ICT?
Indochina Time (ICT) is at UTC+07:00.
What should I know about the ICT timezone?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
When is it midnight in India, what time is it in Bangkok?
When it is 12:00 AM (midnight) in India (IST), it is +1h 30m later in Bangkok (ICT).
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