Pakistan Standard Time (pkt) is used in Pakistan. The IANA timezone identifier is Asia/Karachi.

Japan Standard Time (jst) is used in Japan. The IANA timezone identifier is Asia/Tokyo.

PKT to JST Time Converter

Pakistan Standard Time → Japan Standard Time

PKT = UTC+5JST = UTC+9

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

JST (Tokyo)

Japan · +4h

13:00

London

United Kingdom · -4h

05:00

New York

USA · -9h

00:00

Dubai

United Arab Emirates · -1h

08:00

Sydney

Australia · +5h

14:00

How far apart are PKT (Karachi) and JST (Tokyo)?

PKT (Karachi) is 4 hours behind JST (Tokyo). When PKT (Karachi) clocks hit noon, JST (Tokyo) reads 16:00.

PKT (Karachi) runs on Asia/Karachi; JST (Tokyo) runs on Asia/Tokyo. Together they are 4 hours apart.

Daily overlap window

Every working day, PKT (Karachi) and JST (Tokyo) are both in business hours for 4 hours simultaneously.

00:0006:0012:0018:0024:00

PKT (Karachi)

JST (Tokyo)

Overlap (4h)

Best times to schedule a meeting

There is a 4-hour daily window where both locations are in business hours. The 3 best slots are listed below.

09:00 Karachi / 13:00 Tokyo✓ Both working

10:00 Karachi / 14:00 Tokyo✓ Both working

11:00 Karachi / 15:00 Tokyo✓ Both working

Working hours defined as 09:00–17:00 local time for each location.

Holiday calendar for both locations

PKT (Karachi)

No upcoming public holidays this year.

JST (Tokyo)7 holidays

Jul 20Marine Day

Aug 11Mountain Day

Sep 21Respect for the Aged Day

Sep 23Autumnal Equinox Day

Oct 12Sports Day

Working across PKT (Karachi) and JST (Tokyo)

The 4-hour gap between PKT (Karachi) (Pakistan) and JST (Tokyo) (Japan) requires some planning — but a 4-hour daily overlap means both teams can connect in real time without unusual scheduling.

💡 Best practice for cross-timezone meetings

✅

If you are in PKT (Karachi), aim for 09:00–10:00, which corresponds to 13:00–14:00 in JST (Tokyo) — both teams are within working hours.

✅

If you are in PKT (Karachi), aim for 10:00–11:00, which corresponds to 14:00–15:00 in JST (Tokyo) — both teams are within working hours.

✅

If you are in PKT (Karachi), aim for 11:00–12:00, which corresponds to 15:00–16:00 in JST (Tokyo) — both teams are within working hours.

Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.

Add to your browser — Free →

Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am PKT (Karachi)".

PKT (Karachi) ↔ JST (Tokyo)

4h of business hours overlap daily (09:00–17:00)

PKT (Karachi)

JST (Tokyo)

00:00

04:00

01:00

05:00

02:00

06:00

03:00

07:00

04:00

08:00

05:00

09:00Working

06:00

10:00Working

07:00

11:00Working

08:00

12:00Working

09:00Working

13:00Working

10:00Working

14:00Working

11:00Working

15:00Working

12:00Working

16:00Working

13:00Working

17:00off

14:00Working

18:00off

15:00Working

19:00off

16:00Working

20:00off

17:00

21:00

18:00

22:00

19:00

23:00

20:00

00:00+1d

21:00

01:00+1d

22:00

02:00+1d

23:00

03:00+1d

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between pkt and jst?

Pakistan Standard Time (pkt) is UTC+5 and Japan Standard Time (jst) is UTC+9. The difference between them is 4 hours.

Where is pkt used?

Pakistan Standard Time (pkt) is used in Pakistan and surrounding regions. The IANA timezone identifier is Asia/Karachi.

Where is jst used?

Japan Standard Time (jst) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.

How do I convert pkt to jst?

Use the interactive converter above. Drag the time slider to any pkt time and the jst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular PKT conversions

PKT → London PKT → New York PKT → Tokyo PKT → Dubai PKT → Sydney PKT → Paris PKT → Berlin PKT → Singapore PKT → Los Angeles PKT → Toronto

Popular JST conversions

London → JST New York → JST Dubai → JST Sydney → JST Paris → JST Berlin → JST Singapore → JST Los Angeles → JST Toronto → JST Mumbai → JST