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 Dubai

+3h

Ireland

ISTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Dubai

GST

UAE · UTC+04:00

HH03

MM00

15:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Ireland

Dubai

12:00 AM

3:00 AM

2:00 AM

5:00 AM

4:00 AM

7:00 AM

6:00 AM

9:00 AM

8:00 AM

11:00 AM

10:00 AM

1:00 PM

12:00 PM

3:00 PM

2:00 PM

5:00 PM

4:00 PM

7:00 PM

6:00 PM

9:00 PM

8:00 PM

11:00 PM

10:00 PM

1:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

IST and GST on the World Map

The map below highlights the IST (Greenwich Mean Time) and GST (Gulf Standard Time) timezone regions across the globe.

IST Zone

→

GST 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

GST – Gulf Standard Time

UTC+04:00

Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.

Countries in GST

UAEOmanGeorgiaAzerbaijanMauritius

Major Cities in GST

DubaiAbu DhabiMuscatBakuTbilisi

Key Facts about GST

•Dubai uses GST year-round with no daylight saving time.
•GST is 9 hours ahead of EST and 4 hours ahead of GMT.
•The Dubai Financial Market (DFM) operates on GST.

Daylight Saving:No – UTC+04:00 year-round

Learn more about GST on Wikipedia

About Dubai

Wikipedia

Dubai operates on Gulf Standard Time (GST), 4 hours ahead of GMT. Dubai's position between Europe and Asia makes it a strategic hub for international business.

Population:3.5 million

Metro:4.1 million

Business Hours:8:00 AM - 6:00 PM GST

Currency:AED (د.إ)

Stock Exchange:DFM (Dubai Financial Market)

Key Landmarks

Burj KhalifaPalm JumeirahBurj Al ArabDubai MallDubai Frame

Did You Know?

Dubai has no income tax, making it a major hub for international business.

Learn more about GST timezone →

Ireland vs Dubai: Offsets, DST and Best Call Times

Ireland runs on Irish Standard Time (IST) at UTC+01:00, currently observing daylight saving time. Dubai runs on Gulf Standard Time (GST) at UTC+04:00. That puts Ireland 3 hours ahead of Dubai — a difference of +3h at the current offsets.

In practice, when it is 9:00 AM in Ireland it is 12:00 PM in Dubai. Midnight in Ireland is 3:00 AM in Dubai.Ireland observes daylight saving time while Dubai does not, so the gap narrows or widens by an hour part of the year.

Ireland to Dubai time conversion table

Ireland (IST)	Dubai (GST)	Day
12:00 AM	3:00 AM	same day
6:00 AM	9:00 AM	same day
7:00 AM	10:00 AM	same day
8:00 AM	11:00 AM	same day
9:00 AM	12:00 PM	same day
12:00 PM	3:00 PM	same day
3:00 PM	6:00 PM	same day
5:00 PM	8:00 PM	same day
6:00 PM	9:00 PM	same day
9:00 PM	12:00 AM	next day

Why people convert Ireland to Dubai time

Scheduling a call from Ireland to Dubai: a 10:00 AM start in Ireland lands at 1:00 PM in Dubai, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Ireland and Dubai are inside the 9-to-5 working day between 9:00 AM and 2:00 PM IST time (12:00 PM–5:00 PM GST). That is roughly 5 hours of usable overlap.
Coordinating a Ireland-based team with Dubai 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 +3h gap is not.
Block 9:00 AM–2:00 PM IST as the recurring meeting window if you work primarily from Ireland and need Dubai 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 +3h 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 GST (Gulf Standard Time)

Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.

Best time to call between Ireland and Dubai

Both Ireland and Dubai sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM IST, which is 12:00 PM–5:00 PM GST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Ireland and Dubai share 5 hours of working-hours overlap (9:00 AM–2:00 PM IST), so scheduling a live meeting is straightforward.

Ireland is 3 hours ahead of Dubai (IST UTC+01:00 → GST UTC+04:00). The shared working window is 9:00 AM–2:00 PM 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

Dubai

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 Dubai?

Ireland (IST, UTC+01:00) is 3 hours ahead of Dubai (GST, UTC+04:00). The gap is currently +3h.

How do I convert Ireland time to Dubai time?

Add +3h to Ireland local time. For example, 9:00 AM in Ireland is 12:00 PM in Dubai.

What time is it in Dubai right now?

Dubai uses GST at UTC+04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +3h offset from Ireland.

What is the best time to call Dubai from Ireland?

Call between 9:00 AM and 2:00 PM IST — that maps to 12:00 PM–5:00 PM GST and keeps both parties inside the working day.

Which is ahead, Ireland or Dubai?

Ireland is 3 hours ahead of Dubai. When it is 12:00 PM in Ireland it is 3:00 PM in Dubai.

Do Ireland and Dubai use different time zones?

Ireland (Ireland) uses IST at UTC+01:00, while Dubai (UAE) uses GST at UTC+04:00. The IANA identifiers are Europe/Dublin and Asia/Dubai.

Does daylight saving time affect the Ireland–Dubai difference?

Yes at the moment: Ireland is on daylight saving time and Dubai is not, so the +3h 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 Dubai?

Not normally. The +3h gap only pushes the date over for late-evening times.

What is the time difference between Ireland and Dubai?

Dubai is +3h from Ireland.

What timezone is Ireland in?

Ireland operates on its local timezone.

What timezone is Dubai in?

Dubai operates on Gulf Standard Time (GST), 4 hours ahead of GMT. Dubai's position between Europe and Asia makes it a strategic hub for international business.

What are the business hours in Dubai?

Standard business hours in Dubai are 8:00 AM - 6:00 PM GST.

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.