Bangkok to Ireland
-6hBangkok
ICTSOURCEIreland
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and IST on the World Map
The map below highlights the ICT (Indochina Time) and IST (Greenwich Mean Time) timezone regions across the globe.
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.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
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 -6h Gap: Bangkok vs Ireland
Bangkok runs on Indochina Time (ICT) at UTC+07:00. Ireland runs on Irish Standard Time (IST) at UTC+01:00, also currently on daylight saving time. That puts Bangkok 6 hours behind Ireland — a difference of -6h at the current offsets.
In practice, when it is 9:00 AM in Bangkok it is 3:00 AM in Ireland. Midnight in Bangkok is 6:00 PM in Ireland.Ireland observes daylight saving time while Bangkok does not, so the gap narrows or widens by an hour part of the year.
Bangkok to Ireland time conversion table
| Bangkok (ICT) | Ireland (IST) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | previous day |
| 6:00 AM | 12:00 AM | same day |
| 7:00 AM | 1:00 AM | same day |
| 8:00 AM | 2:00 AM | same day |
| 9:00 AM | 3:00 AM | same day |
| 12:00 PM | 6:00 AM | same day |
| 3:00 PM | 9:00 AM | same day |
| 5:00 PM | 11:00 AM | same day |
| 6:00 PM | 12:00 PM | same day |
| 9:00 PM | 3:00 PM | same day |
Why people convert Bangkok to Ireland time
- Scheduling a call from Bangkok to Ireland: a 10:00 AM start in Bangkok lands at 4:00 AM in Ireland, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Bangkok and Ireland are inside the 9-to-5 working day between 3:00 PM and 5:00 PM ICT time (9:00 AM–11:00 AM IST). That is roughly 2 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Bangkok is 2:00 PM in Ireland makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -6h gap is not.
- Block 3:00 PM–5:00 PM ICT as the recurring meeting window if you work primarily from Bangkok and need Ireland colleagues present.
- Ireland: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between Bangkok and Ireland
Both Bangkok and Ireland sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM ICT, which is 9:00 AM–11:00 AM IST. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Bangkok and Ireland overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
Bangkok is 6 hours behind Ireland (ICT UTC+07:00 → IST UTC+01:00). The shared working window is 3:00 PM–5:00 PM ICT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Bangkok
Does not observe DST
Ireland
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 Bangkok and Ireland?
Bangkok (ICT, UTC+07:00) is 6 hours behind Ireland (IST, UTC+01:00). The gap is currently -6h.
How do I convert Bangkok time to Ireland time?
Add -6h to Bangkok local time. For example, 9:00 AM in Bangkok is 3:00 AM in Ireland.
What time is it in Ireland right now?
Ireland uses IST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -6h offset from Bangkok.
What is the best time to call Ireland from Bangkok?
Call between 3:00 PM and 5:00 PM ICT — that maps to 9:00 AM–11:00 AM IST and keeps both parties inside the working day.
Which is behind, Bangkok or Ireland?
Bangkok is 6 hours behind Ireland. When it is 12:00 PM in Bangkok it is 6:00 AM in Ireland.
Do Bangkok and Ireland use different time zones?
Bangkok (Thailand) uses ICT at UTC+07:00, while Ireland (Ireland) uses IST at UTC+01:00. The IANA identifiers are Asia/Bangkok and Europe/Dublin.
Does daylight saving time affect the Bangkok–Ireland difference?
Yes at the moment: Ireland is on daylight saving time and Bangkok is not, so the -6h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Bangkok's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, Bangkok's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between Bangkok and Ireland?
Not normally. The -6h gap only pushes the date over the previous day.
What is the time difference between Bangkok and Ireland?
Ireland is -6h from Bangkok.
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 timezone is Ireland in?
Ireland operates on its local timezone.
What are the business hours in Bangkok?
Standard business hours in Bangkok are 8:30 AM - 5:30 PM ICT.
Which countries use ICT (Indochina Time)?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Does ICT observe daylight saving time?
No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.
What are some interesting facts about ICT?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in Bangkok, what time is it in Ireland?
When it is 12:00 AM (midnight) in Bangkok (ICT), it is -6h later in Ireland (GMT).
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