Ireland to Thailand
+6hIreland
ISTSOURCEThailand
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and ICT on the World Map
The map below highlights the IST (Greenwich Mean Time) and ICT (Indochina Time) timezone regions across the globe.
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.
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.
Time Conversion Guide: Ireland to Thailand
Ireland runs on Irish Standard Time (IST) at UTC+01:00, currently observing daylight saving time. Thailand runs on Indochina Time (ICT) at UTC+07:00. That puts Ireland 6 hours ahead of Thailand — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in Ireland it is 3:00 PM in Thailand. Midnight in Ireland is 6:00 AM in Thailand.Ireland observes daylight saving time while Thailand does not, so the gap narrows or widens by an hour part of the year.
Ireland to Thailand time conversion table
| Ireland (IST) | Thailand (ICT) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | same day |
| 6:00 AM | 12:00 PM | same day |
| 7:00 AM | 1:00 PM | same day |
| 8:00 AM | 2:00 PM | same day |
| 9:00 AM | 3:00 PM | same day |
| 12:00 PM | 6:00 PM | same day |
| 3:00 PM | 9:00 PM | same day |
| 5:00 PM | 11:00 PM | same day |
| 6:00 PM | 12:00 AM | next day |
| 9:00 PM | 3:00 AM | next day |
Why people convert Ireland to Thailand time
- Scheduling a call from Ireland to Thailand: a 10:00 AM start in Ireland lands at 4:00 PM in Thailand, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Ireland and Thailand are inside the 9-to-5 working day between 9:00 AM and 11:00 AM IST time (3:00 PM–5:00 PM ICT). That is roughly 2 hours of usable overlap.
- Watching a live event or market open: Ireland viewers need 3:00 PM in Thailand to catch a 9:00 AM start there, and 6:00 PM if the event is anchored to Ireland.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a +6h gap is not.
- Block 9:00 AM–11:00 AM IST as the recurring meeting window if you work primarily from Ireland and need Thailand colleagues present.
- Ireland: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +6h gap.
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.
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 Ireland and Thailand
Both Ireland and Thailand sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM IST, which is 3:00 PM–5:00 PM ICT. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Ireland and Thailand overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
Ireland is 6 hours ahead of Thailand (IST UTC+01:00 → ICT UTC+07:00). The shared working window is 9:00 AM–11:00 AM IST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Ireland
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Thailand
Does not observe DST
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 Ireland and Thailand?
Ireland (IST, UTC+01:00) is 6 hours ahead of Thailand (ICT, UTC+07:00). The gap is currently +6h.
How do I convert Ireland time to Thailand time?
Add +6h to Ireland local time. For example, 9:00 AM in Ireland is 3:00 PM in Thailand.
What time is it in Thailand right now?
Thailand 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 +6h offset from Ireland.
What is the best time to call Thailand from Ireland?
Call between 9:00 AM and 11:00 AM IST — that maps to 3:00 PM–5:00 PM ICT and keeps both parties inside the working day.
Which is ahead, Ireland or Thailand?
Ireland is 6 hours ahead of Thailand. When it is 12:00 PM in Ireland it is 6:00 PM in Thailand.
Do Ireland and Thailand use different time zones?
Ireland (Ireland) uses IST at UTC+01:00, while Thailand (Thailand) uses ICT at UTC+07:00. The IANA identifiers are Europe/Dublin and Asia/Bangkok.
Does daylight saving time affect the Ireland–Thailand difference?
Yes at the moment: Ireland is on daylight saving time and Thailand is not, so the +6h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Ireland's time zone?
IST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use IST, Ireland's zone?
IST is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between Ireland and Thailand?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between Ireland and Thailand?
Thailand is +6h from Ireland.
What timezone is Ireland in?
Ireland operates on its local timezone.
What timezone is Thailand in?
Thailand operates on its local timezone.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
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.
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 Ireland, what time is it in Thailand?
When it is 12:00 AM (midnight) in Ireland (GMT), it is +6h later in Thailand (ICT).
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