Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Ireland to WIB

+6h

Ireland

ISTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

WIB

UTC+07:00

HH06

MM00

18:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Ireland

WIB

12:00 AM

6:00 AM

2:00 AM

8:00 AM

4:00 AM

10:00 AM

6:00 AM

12:00 PM

8:00 AM

2:00 PM

10:00 AM

4:00 PM

12:00 PM

6:00 PM

2:00 PM

8:00 PM

4:00 PM

10:00 PM

6:00 PM

12:00 AM+1

8:00 PM

2:00 AM+1

10:00 PM

4:00 AM+1

Green 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.

IST Zone

→

WIB Zone

Explore all world timezones interactively →

GMT – Greenwich Mean Time

UTC+00:00

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.

Countries in GMT

United KingdomIrelandIcelandPortugal (mainland)GhanaSenegalMaliMauritaniaGambiaGuineaSierra LeoneLiberiaIvory CoastBurkina FasoMorocco (historically)

Major Cities in GMT

LondonDublinLisbonAccraReykjavikEdinburghCasablancaDakarBamakoAbidjanConakryFreetownMonrovia

Key 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.
•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.

Daylight Saving:Yes – switches to BST

Learn more about GMT on Wikipedia

WIB – Western Indonesia Time

UTC+07:00

Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.

Countries in WIB

Indonesia (Java, Sumatra, West Kalimantan)

Major Cities in WIB

JakartaSurabayaBandungMedanPalembang

Key Facts about WIB

•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.

Daylight Saving:No – UTC+07:00 year-round

Learn more about WIB on Wikipedia

Everything You Need to Know About Ireland and WIB Time

Ireland runs on Irish Standard Time (IST) at UTC+01:00, currently observing daylight saving time. WIB runs on Western Indonesia Time (WIB) at UTC+07:00. That puts Ireland 6 hours ahead of WIB — a difference of +6h at the current offsets.

In practice, when it is 9:00 AM in Ireland it is 3:00 PM in WIB. Midnight in Ireland is 6:00 AM in WIB.Ireland observes daylight saving time while WIB does not, so the gap narrows or widens by an hour part of the year.

Ireland to WIB time conversion table

Ireland (IST)	WIB (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 WIB time

Scheduling a call from Ireland to WIB: a 10:00 AM start in Ireland lands at 4:00 PM in WIB, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Ireland and WIB 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 WIB 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 WIB 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 WIB

Both Ireland and WIB 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 WIB 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 WIB (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

WIB

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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Ireland and WIB?

Ireland (IST, UTC+01:00) is 6 hours ahead of WIB (WIB, UTC+07:00). The gap is currently +6h.

How do I convert Ireland time to WIB time?

Add +6h to Ireland local time. For example, 9:00 AM in Ireland is 3:00 PM in WIB.

What time is it in WIB right now?

WIB 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 WIB 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 WIB?

Ireland is 6 hours ahead of WIB. When it is 12:00 PM in Ireland it is 6:00 PM in WIB.

Do Ireland and WIB use different time zones?

Ireland (Ireland) uses IST at UTC+01:00, while WIB uses WIB at UTC+07:00. The IANA identifiers are Europe/Dublin and Asia/Jakarta.

Does daylight saving time affect the Ireland–WIB difference?

Yes at the moment: Ireland is on daylight saving time and WIB 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 WIB?

Not normally. The +6h gap only pushes the date over for late-evening times.

What is the time difference between Ireland and WIB?

WIB is +6h from Ireland.

What timezone is Ireland in?

Ireland operates on its local timezone.

What timezone is WIB in?

WIB 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.