PKT to IRST
-1h 30mPKT
PKTSOURCEIRST
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
PKT and IRST on the World Map
The map below highlights the PKT (Pakistan Standard Time) and IRST (Iran 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).
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
PKT to IRST Time Difference – Complete Guide
PKT runs on Pakistan Standard Time (PKT) at UTC+05:00. IRST runs on Iran Standard Time (IRST) at UTC+03:30. That puts PKT 1 hour 30 minutes behind IRST — a difference of -1h 30m at the current offsets.
In practice, when it is 9:00 AM in PKT it is 7:30 AM in IRST. Midnight in PKT is 10:30 PM in IRST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PKT to IRST time conversion table
| PKT (PKT) | IRST (IRST) | Day |
|---|---|---|
| 12:00 AM | 10:30 PM | previous day |
| 6:00 AM | 4:30 AM | same day |
| 7:00 AM | 5:30 AM | same day |
| 8:00 AM | 6:30 AM | same day |
| 9:00 AM | 7:30 AM | same day |
| 12:00 PM | 10:30 AM | same day |
| 3:00 PM | 1:30 PM | same day |
| 5:00 PM | 3:30 PM | same day |
| 6:00 PM | 4:30 PM | same day |
| 9:00 PM | 7:30 PM | same day |
Why people convert PKT to IRST time
- Scheduling a call from PKT to IRST: a 10:00 AM start in PKT lands at 8:30 AM in IRST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both PKT and IRST are inside the 9-to-5 working day between 10:30 AM and 5:00 PM PKT time (9:00 AM–3:30 PM IRST). That is roughly 6 hours 30 minutes of usable overlap.
- Watching a live event or market open: PKT viewers need 7:30 AM in IRST to catch a 9:00 AM start there, and 1:30 AM if the event is anchored to PKT.
- Always state the zone abbreviation, not just the hour. "3:00 PM PKT" is unambiguous; "3 PM" across a -1h 30m gap is not.
- Block 10:30 AM–5:00 PM PKT as the recurring meeting window if you work primarily from PKT and need IRST colleagues present.
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 IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
Best time to call between PKT and IRST
Both PKT and IRST sit inside the 9 AM – 5 PM working day between 10:30 AM–5:00 PM PKT, which is 9:00 AM–3:30 PM IRST. That gives roughly 6 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
PKT and IRST share 6 hours of working-hours overlap (10:30 AM–5:00 PM PKT), so scheduling a live meeting is straightforward.
PKT is 1 hour 30 minutes behind IRST (PKT UTC+05:00 → IRST UTC+03:30). The shared working window is 10:30 AM–5:00 PM PKT. Remember to re-check around daylight-saving transitions.
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 PKT and IRST?
PKT (PKT, UTC+05:00) is 1 hour 30 minutes behind IRST (IRST, UTC+03:30). The gap is currently -1h 30m.
How do I convert PKT time to IRST time?
Add -1h 30m to PKT local time. For example, 9:00 AM in PKT is 7:30 AM in IRST.
What time is it in IRST right now?
IRST uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h 30m offset from PKT.
What is the best time to call IRST from PKT?
Call between 10:30 AM and 5:00 PM PKT — that maps to 9:00 AM–3:30 PM IRST and keeps both parties inside the working day.
Which is behind, PKT or IRST?
PKT is 1 hour 30 minutes behind IRST. When it is 12:00 PM in PKT it is 10:30 AM in IRST.
Does daylight saving time affect the PKT–IRST difference?
Neither zone observes daylight saving time, so the -1h 30m offset between PKT and IRST is fixed all year.
Which other cities share PKT's time zone?
PKT also covers Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Peshawar.
Which countries use PKT, PKT's zone?
PKT is used in Pakistan.
Is there a day difference between PKT and IRST?
Not normally. The -1h 30m gap only pushes the date over the previous day.
What is the time difference between PKT and IRST?
IRST is -1h 30m from PKT.
What timezone is PKT in?
PKT operates on its local timezone.
What timezone is IRST in?
IRST 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 IRST timezone?
Major cities in the IRST timezone include Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
What is the UTC offset for IRST?
Iran Standard Time (IRST) is at UTC+03:30. During daylight saving time, it shifts to IRDT.
What should I know about the IRST timezone?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
When is it midnight in PKT, what time is it in IRST?
When it is 12:00 AM (midnight) in PKT (PKT), it is -1h 30m later in IRST (IRST).
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