Ireland to Karachi
+4hIreland
ISTSOURCEKarachi
PKTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and PKT on the World Map
The map below highlights the IST (Greenwich Mean Time) and PKT (Pakistan Standard 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.
PKT – Pakistan Standard Time
UTC+05:00Pakistan Standard Time (PKT) is the time zone for Pakistan, 5 hours ahead of UTC.
- •Pakistan does not observe daylight saving time.
- •Karachi is one of the world's most populous cities.
- •PKT is the same offset as Uzbekistan (UZT) and Yekaterinburg (YEKT).
About Karachi
WikipediaKarachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.
Karachi is one of the fastest-growing megacities in the world.
Time Conversion Guide: Ireland to Karachi
Ireland runs on Irish Standard Time (IST) at UTC+01:00, currently observing daylight saving time. Karachi runs on Pakistan Standard Time (PKT) at UTC+05:00. That puts Ireland 4 hours ahead of Karachi — a difference of +4h at the current offsets.
In practice, when it is 9:00 AM in Ireland it is 1:00 PM in Karachi. Midnight in Ireland is 4:00 AM in Karachi.Ireland observes daylight saving time while Karachi does not, so the gap narrows or widens by an hour part of the year.
Ireland to Karachi time conversion table
| Ireland (IST) | Karachi (PKT) | Day |
|---|---|---|
| 12:00 AM | 4:00 AM | same day |
| 6:00 AM | 10:00 AM | same day |
| 7:00 AM | 11:00 AM | same day |
| 8:00 AM | 12:00 PM | same day |
| 9:00 AM | 1:00 PM | same day |
| 12:00 PM | 4:00 PM | same day |
| 3:00 PM | 7:00 PM | same day |
| 5:00 PM | 9:00 PM | same day |
| 6:00 PM | 10:00 PM | same day |
| 9:00 PM | 1:00 AM | next day |
Why people convert Ireland to Karachi time
- Scheduling a call from Ireland to Karachi: a 10:00 AM start in Ireland lands at 2:00 PM in Karachi, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Ireland and Karachi are inside the 9-to-5 working day between 9:00 AM and 1:00 PM IST time (1:00 PM–5:00 PM PKT). That is roughly 4 hours of usable overlap.
- Booking travel or deliveries: tracking Karachi local time against Ireland keeps pickup windows and arrival estimates honest across the +4h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a +4h gap is not.
- Block 9:00 AM–1:00 PM IST as the recurring meeting window if you work primarily from Ireland and need Karachi 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 +4h 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 PKT (Pakistan Standard Time)
Pakistan Standard Time (PKT) is the time zone used throughout Pakistan. PKT does not observe daylight saving time. Pakistan is the 5th most populous country in the world.
Best time to call between Ireland and Karachi
Both Ireland and Karachi sit inside the 9 AM – 5 PM working day between 9:00 AM–1:00 PM IST, which is 1:00 PM–5:00 PM PKT. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Ireland and Karachi overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
Ireland is 4 hours ahead of Karachi (IST UTC+01:00 → PKT UTC+05:00). The shared working window is 9:00 AM–1:00 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
Karachi
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 Karachi?
Ireland (IST, UTC+01:00) is 4 hours ahead of Karachi (PKT, UTC+05:00). The gap is currently +4h.
How do I convert Ireland time to Karachi time?
Add +4h to Ireland local time. For example, 9:00 AM in Ireland is 1:00 PM in Karachi.
What time is it in Karachi right now?
Karachi uses PKT at UTC+05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +4h offset from Ireland.
What is the best time to call Karachi from Ireland?
Call between 9:00 AM and 1:00 PM IST — that maps to 1:00 PM–5:00 PM PKT and keeps both parties inside the working day.
Which is ahead, Ireland or Karachi?
Ireland is 4 hours ahead of Karachi. When it is 12:00 PM in Ireland it is 4:00 PM in Karachi.
Do Ireland and Karachi use different time zones?
Ireland (Ireland) uses IST at UTC+01:00, while Karachi (Pakistan) uses PKT at UTC+05:00. The IANA identifiers are Europe/Dublin and Asia/Karachi.
Does daylight saving time affect the Ireland–Karachi difference?
Yes at the moment: Ireland is on daylight saving time and Karachi is not, so the +4h 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 Karachi?
Not normally. The +4h gap only pushes the date over for late-evening times.
What is the time difference between Ireland and Karachi?
Karachi is +4h from Ireland.
What timezone is Ireland in?
Ireland operates on its local timezone.
What timezone is Karachi in?
Karachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.
What are the business hours in Karachi?
Standard business hours in Karachi are 9:00 AM - 5:00 PM PKT.
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 PKT timezone?
Major cities in the PKT timezone include Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Peshawar.
What is the UTC offset for PKT?
Pakistan Standard Time (PKT) is at UTC+05:00.
What should I know about the PKT timezone?
Pakistan does not observe daylight saving time. Karachi is one of the world's most populous cities.
When is it midnight in Ireland, what time is it in Karachi?
When it is 12:00 AM (midnight) in Ireland (GMT), it is +4h later in Karachi (PKT).
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