What is the time difference between PKT and IRST?

Iran Standard Time (IRST) is 1 hours and 30 minutes behind Pakistan Standard Time (PKT). PKT uses a UTC offset of UTC+5, while IRST uses UTC+3:30. For example, when it's 9:00 AM in PKT, it's 7:30 AM in IRST. This difference remains constant year-round since neither timezone observes daylight saving time. Use the conversion table above to see the exact time for each hour of the day.

How do I convert PKT to IRST?

To convert PKT to IRST, subtract 1 hours and 30 minutes from the PKT time. For example, 9:00 AM PKT is 7:30 AM IRST, and 5:00 PM PKT is 3:30 PM IRST. Since neither timezone observes DST, this conversion stays the same all year. You can also use the interactive converter above for quick, accurate results.

What time is it in IRST when it's noon in PKT?

When it's 12:00 PM (noon) in PKT, it's 10:30 AM in IRST. This is because IRST is 1 hours and 30 minutes behind PKT. Similarly, when it's 6:00 PM in PKT, it's 4:30 PM in IRST. This relationship is constant throughout the year. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours behind is IRST from PKT?

IRST is 1 hours and 30 minutes behind PKT. This means when it's 9:00 AM in PKT, it's 7:30 AM in IRST, and when it's midnight in PKT, it's 10:30 PM in IRST. This offset is constant throughout the year since neither timezone uses daylight saving time. The conversion table above provides a complete hour-by-hour mapping.

Is IRST ahead or behind PKT?

IRST is behind PKT by 1 hours and 30 minutes. Clocks in IRST show an earlier time than PKT, meaning the day starts later in IRST relative to PKT. For example, when it's noon in PKT, it's still 10:30 AM in IRST. This difference stays the same year-round.

Does PKT observe daylight saving time?

No, Pakistan Standard Time does not observe daylight saving time. The UTC offset of UTC+5 remains the same year-round, making time conversions from PKT more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

Does IRST observe daylight saving time?

No, Iran Standard Time does not observe daylight saving time. The UTC offset of UTC+3:30 remains the same year-round, which simplifies time conversions. Regions using IRST keep their clocks unchanged regardless of the season.

What is the best time to call from PKT to IRST?

The best time for a call between PKT and IRST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in IRST during their work day, call between 10:30 AM and 6:30 PM your PKT time. Avoid calling too early or late, as the 1 hours and 30 minutes difference means your evening could be their early morning. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

Do PKT and IRST ever have the same time?

No, PKT and IRST are always 1 hours and 30 minutes apart and never display the same clock time simultaneously. Neither timezone observes DST, so the difference is constant year-round with no seasonal variation. The 1 hours and 30 minutes offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

PKT to IRST Converter

Convert Pakistan Standard Time to Iran Standard Time. See the hour-by-hour conversion table below.

Timezone Details

Pakistan Standard Time

5:24 PM

Friday, April 3, 2026

PKT (UTC+05:00)

Tehran

3:54 PM

Friday, April 3, 2026

Tehran (UTC+03:30)

Difference: -1h 30m

PKT DST: No

24-Hour Overview

PKT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

Tehran — 24-hour overview

10p10p

11p

12a

1a1a

4a4a

7a7a

10a10a

11a

12p

1p1p

4p4p

7p7p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

IRST to PKT

Cities in These Timezones

PKT Cities

Karachi Lahore Faisalabad Islamabad

IRST Cities

Tehran

More Tools

Compare PKT & IRST Plan a Meeting (PKT & IRST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Pakistan Standard Time on Wikipedia IANA Time Zone Database