Ireland to Jakarta
+6hIreland
ISTSOURCEJakarta
WIBGreen rows indicate typical business hours (9 AM - 5 PM)
IST and WIB on the World Map
The map below highlights the IST (Greenwich Mean Time) and WIB (Western Indonesia 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.
WIB – Western Indonesia Time
UTC+07:00Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.
- •Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00).
- •Indonesia has not observed daylight saving time since 1964.
- •Jakarta is the largest city in Southeast Asia by population.
- •WIB shares the UTC+07:00 offset with Indochina Time.
About Jakarta
WikipediaJakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.
Indonesia has 3 time zones; Jakarta uses Western Indonesia Time (WIB).
Everything You Need to Know About Ireland and Jakarta Time
Ireland runs on Irish Standard Time (IST) at UTC+01:00, currently observing daylight saving time. Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. That puts Ireland 6 hours ahead of Jakarta — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in Ireland it is 3:00 PM in Jakarta. Midnight in Ireland is 6:00 AM in Jakarta.Ireland observes daylight saving time while Jakarta does not, so the gap narrows or widens by an hour part of the year.
Ireland to Jakarta time conversion table
| Ireland (IST) | Jakarta (WIB) | 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 Jakarta time
- Scheduling a call from Ireland to Jakarta: a 10:00 AM start in Ireland lands at 4:00 PM in Jakarta, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Ireland and Jakarta are inside the 9-to-5 working day between 9:00 AM and 11:00 AM IST time (3:00 PM–5:00 PM WIB). That is roughly 2 hours of usable overlap.
- Booking travel or deliveries: tracking Jakarta local time against Ireland keeps pickup windows and arrival estimates honest across the +6h offset.
- 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 Jakarta 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 WIB (Western Indonesia Time)
Western Indonesia Time (WIB, Waktu Indonesia Barat) is one of Indonesia's three time zones, fixed at UTC+07:00 all year. It covers Java, Sumatra, West Kalimantan and the provinces around them — home to Jakarta, the country's capital and largest city, plus Surabaya and Bandung. Indonesia does not observe daylight saving time, so WIB never shifts. WIB shares its UTC+07:00 offset with Indochina Time (ICT) and Christmas Island Time, but is a distinct zone covering the western half of the Indonesian archipelago. The country's other zones are WITA (UTC+08:00) in the centre and WIT (UTC+09:00) in the east.
Best time to call between Ireland and Jakarta
Both Ireland and Jakarta 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 WIB. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Ireland and Jakarta 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 Jakarta (IST UTC+01:00 → WIB 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
Jakarta
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 Jakarta?
Ireland (IST, UTC+01:00) is 6 hours ahead of Jakarta (WIB, UTC+07:00). The gap is currently +6h.
How do I convert Ireland time to Jakarta time?
Add +6h to Ireland local time. For example, 9:00 AM in Ireland is 3:00 PM in Jakarta.
What time is it in Jakarta right now?
Jakarta uses WIB 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 Jakarta from Ireland?
Call between 9:00 AM and 11:00 AM IST — that maps to 3:00 PM–5:00 PM WIB and keeps both parties inside the working day.
Which is ahead, Ireland or Jakarta?
Ireland is 6 hours ahead of Jakarta. When it is 12:00 PM in Ireland it is 6:00 PM in Jakarta.
Do Ireland and Jakarta use different time zones?
Ireland (Ireland) uses IST at UTC+01:00, while Jakarta (Indonesia) uses WIB at UTC+07:00. The IANA identifiers are Europe/Dublin and Asia/Jakarta.
Does daylight saving time affect the Ireland–Jakarta difference?
Yes at the moment: Ireland is on daylight saving time and Jakarta 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 Jakarta?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between Ireland and Jakarta?
Jakarta is +6h from Ireland.
What timezone is Ireland in?
Ireland operates on its local timezone.
What timezone is Jakarta in?
Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.
What are the business hours in Jakarta?
Standard business hours in Jakarta are 8:00 AM - 5:00 PM WIB.
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 WIB timezone?
Major cities in the WIB timezone include Jakarta, Surabaya, Bandung, Medan, Palembang.
What is the UTC offset for WIB?
Western Indonesia Time (WIB) is at UTC+07:00.
What should I know about the WIB timezone?
Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00). Indonesia has not observed daylight saving time since 1964.
When is it midnight in Ireland, what time is it in Jakarta?
When it is 12:00 AM (midnight) in Ireland (GMT), it is +6h later in Jakarta (WIB).
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