Pakistan to AST
-9hPakistan
PKTSOURCEAST
ASTGreen rows indicate typical business hours (9 AM - 5 PM)
PKT and AST on the World Map
The map below highlights the PKT (Pakistan Standard Time) and AST (Atlantic Standard 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).
AST – Atlantic Standard Time
UTC-04:00Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.
- •Puerto Rico uses AST year-round and does not observe DST.
- •AST is 1 hour ahead of EST.
- •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
Everything You Need to Know About Pakistan and AST Time
Pakistan runs on Pakistan Standard Time (PKT) at UTC+05:00. AST runs on Atlantic Standard Time (AST) at UTC-04:00. That puts Pakistan 9 hours behind AST — a difference of -9h at the current offsets.
In practice, when it is 9:00 AM in Pakistan it is 12:00 AM in AST. Midnight in Pakistan is 3:00 PM in AST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Pakistan to AST time conversion table
| Pakistan (PKT) | AST (AST) | Day |
|---|---|---|
| 12:00 AM | 3:00 PM | previous day |
| 6:00 AM | 9:00 PM | previous day |
| 7:00 AM | 10:00 PM | previous day |
| 8:00 AM | 11:00 PM | previous day |
| 9:00 AM | 12:00 AM | same day |
| 12:00 PM | 3:00 AM | same day |
| 3:00 PM | 6:00 AM | same day |
| 5:00 PM | 8:00 AM | same day |
| 6:00 PM | 9:00 AM | same day |
| 9:00 PM | 12:00 PM | same day |
Why people convert Pakistan to AST time
- Scheduling a call from Pakistan to AST: a 10:00 AM start in Pakistan lands at 1:00 AM in AST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -9h gap: Pakistan and AST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in AST is 12:00 AM in Pakistan.
- Coordinating a Pakistan-based team with AST 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 PKT" is unambiguous; "3 PM" across a -9h gap is not.
- With a -9h gap there is no shared 9-to-5 window, so alternate the early start: one week Pakistan takes the early slot, the next week AST does.
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 AST (Atlantic Standard Time)
Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.
Best time to call between Pakistan and AST
With a -9h offset there is no overlap inside a normal 9 AM – 5 PM day. AST opens at 9:00 AM AST, which is 12:00 AM in Pakistan, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Pakistan and AST have no shared working hours because of the -9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Pakistan is 9 hours behind AST (PKT UTC+05:00 → AST UTC-04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Pakistan
Does not observe DST
AST
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Nov 1, 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 Pakistan and AST?
Pakistan (PKT, UTC+05:00) is 9 hours behind AST (AST, UTC-04:00). The gap is currently -9h.
How do I convert Pakistan time to AST time?
Add -9h to Pakistan local time. For example, 9:00 AM in Pakistan is 12:00 AM in AST.
What time is it in AST right now?
AST uses AST at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -9h offset from Pakistan.
What is the best time to call AST from Pakistan?
There is no shared working-hours window because of the -9h gap. The closest option is 1:00 PM in Pakistan, which is 4:00 AM in AST.
Which is behind, Pakistan or AST?
Pakistan is 9 hours behind AST. When it is 12:00 PM in Pakistan it is 3:00 AM in AST.
Do Pakistan and AST use different time zones?
Pakistan (Pakistan) uses PKT at UTC+05:00, while AST uses AST at UTC-04:00. The IANA identifiers are Asia/Karachi and America/Halifax.
Does daylight saving time affect the Pakistan–AST difference?
Neither zone observes daylight saving time, so the -9h offset between Pakistan and AST is fixed all year.
Which other cities share Pakistan's time zone?
PKT also covers Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Peshawar.
Which countries use PKT, Pakistan's zone?
PKT is used in Pakistan.
Is there a day difference between Pakistan and AST?
Not normally. The -9h gap only pushes the date over the previous day.
What is the time difference between Pakistan and AST?
AST is -9h from Pakistan.
What timezone is Pakistan in?
Pakistan operates on its local timezone.
What timezone is AST in?
AST operates on its local timezone.
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 AST timezone?
Major cities in the AST timezone include Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.
What is the UTC offset for AST?
Atlantic Standard Time (AST) is at UTC-04:00. During daylight saving time, it shifts to ADT.
What should I know about the AST timezone?
Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.
When is it midnight in Pakistan, what time is it in AST?
When it is 12:00 AM (midnight) in Pakistan (PKT), it is -9h later in AST (AST).
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