Karachi to Ireland
-4hKarachi
PKTSOURCEIreland
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
PKT and IST on the World Map
The map below highlights the PKT (Pakistan Standard Time) and IST (Greenwich Mean Time) timezone regions across the globe.
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).
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.
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.
Understanding the -4h Gap: Karachi vs Ireland
Karachi runs on Pakistan Standard Time (PKT) at UTC+05:00. Ireland runs on Irish Standard Time (IST) at UTC+01:00, also currently on daylight saving time. That puts Karachi 4 hours behind Ireland — a difference of -4h at the current offsets.
In practice, when it is 9:00 AM in Karachi it is 5:00 AM in Ireland. Midnight in Karachi is 8:00 PM in Ireland.Ireland observes daylight saving time while Karachi does not, so the gap narrows or widens by an hour part of the year.
Karachi to Ireland time conversion table
| Karachi (PKT) | Ireland (IST) | Day |
|---|---|---|
| 12:00 AM | 8:00 PM | previous day |
| 6:00 AM | 2:00 AM | same day |
| 7:00 AM | 3:00 AM | same day |
| 8:00 AM | 4:00 AM | same day |
| 9:00 AM | 5:00 AM | same day |
| 12:00 PM | 8:00 AM | same day |
| 3:00 PM | 11:00 AM | same day |
| 5:00 PM | 1:00 PM | same day |
| 6:00 PM | 2:00 PM | same day |
| 9:00 PM | 5:00 PM | same day |
Why people convert Karachi to Ireland time
- Scheduling a call from Karachi to Ireland: a 10:00 AM start in Karachi lands at 6:00 AM in Ireland, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Karachi and Ireland are inside the 9-to-5 working day between 1:00 PM and 5:00 PM PKT time (9:00 AM–1:00 PM IST). That is roughly 4 hours of usable overlap.
- Watching a live event or market open: Karachi viewers need 5:00 AM in Ireland to catch a 9:00 AM start there, and 4:00 AM if the event is anchored to Karachi.
- Always state the zone abbreviation, not just the hour. "3:00 PM PKT" is unambiguous; "3 PM" across a -4h gap is not.
- Block 1:00 PM–5:00 PM PKT as the recurring meeting window if you work primarily from Karachi and need Ireland colleagues present.
- Ireland: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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.
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.
Best time to call between Karachi and Ireland
Both Karachi and Ireland sit inside the 9 AM – 5 PM working day between 1:00 PM–5:00 PM PKT, which is 9:00 AM–1:00 PM IST. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Karachi and Ireland overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
Karachi is 4 hours behind Ireland (PKT UTC+05:00 → IST UTC+01:00). The shared working window is 1:00 PM–5:00 PM PKT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Karachi
Does not observe DST
Ireland
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 Karachi and Ireland?
Karachi (PKT, UTC+05:00) is 4 hours behind Ireland (IST, UTC+01:00). The gap is currently -4h.
How do I convert Karachi time to Ireland time?
Add -4h to Karachi local time. For example, 9:00 AM in Karachi is 5:00 AM in Ireland.
What time is it in Ireland right now?
Ireland uses IST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h offset from Karachi.
What is the best time to call Ireland from Karachi?
Call between 1:00 PM and 5:00 PM PKT — that maps to 9:00 AM–1:00 PM IST and keeps both parties inside the working day.
Which is behind, Karachi or Ireland?
Karachi is 4 hours behind Ireland. When it is 12:00 PM in Karachi it is 8:00 AM in Ireland.
Do Karachi and Ireland use different time zones?
Karachi (Pakistan) uses PKT at UTC+05:00, while Ireland (Ireland) uses IST at UTC+01:00. The IANA identifiers are Asia/Karachi and Europe/Dublin.
Does daylight saving time affect the Karachi–Ireland 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 Karachi's time zone?
PKT also covers Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Peshawar.
Which countries use PKT, Karachi's zone?
PKT is used in Pakistan.
Is there a day difference between Karachi and Ireland?
Not normally. The -4h gap only pushes the date over the previous day.
What is the time difference between Karachi and Ireland?
Ireland is -4h from Karachi.
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 timezone is Ireland in?
Ireland operates on its local timezone.
What are the business hours in Karachi?
Standard business hours in Karachi are 9:00 AM - 5:00 PM PKT.
Which countries use PKT (Pakistan Standard Time)?
PKT is used in Pakistan.
Does PKT observe daylight saving time?
No, PKT does not observe daylight saving time and remains at UTC+05:00 year-round.
What are some interesting facts about PKT?
Pakistan does not observe daylight saving time. Karachi is one of the world's most populous cities.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
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.
When is it midnight in Karachi, what time is it in Ireland?
When it is 12:00 AM (midnight) in Karachi (PKT), it is -4h later in Ireland (GMT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Karachi time conversions
- karachi to pkt
- karachi to pakistan
- karachi to dubai
- karachi to mumbai
- karachi to delhi
- karachi to bangalore
- karachi to kathmandu
- karachi to bangkok
- karachi to singapore
- karachi to hong kong
- karachi to shanghai
- karachi to beijing
- karachi to tokyo
- karachi to osaka
- karachi to new york
- karachi to london
- karachi to sydney
- karachi to los angeles
- karachi to paris
- karachi to berlin
- karachi to toronto
- new york to karachi
- london to karachi
- dubai to karachi
- tokyo to karachi
- singapore to karachi
- sydney to karachi
- los angeles to karachi
- paris to karachi
- delhi to karachi
- mumbai to karachi
- berlin to karachi
- hong kong to karachi
- toronto to karachi
- kathmandu to karachi
See every conversion from Karachi →·See every conversion from Ireland →