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

British Summer Time (bst) is used in United Kingdom. The IANA timezone identifier is Europe/London.

PKT to BST Time Converter

Pakistan Standard Time → British Summer Time

PKT = UTC+5BST = UTC+1

⚠️ BST is ambiguous — on this page it means British Summer Time. It also refers to:

PKT → Bangladesh Standard Time (Dhaka) ↗

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

BST (London)

United Kingdom · -4h

05:00

New York

USA · -9h

00:00

Tokyo

Japan · +4h

13:00

Dubai

United Arab Emirates · -1h

08:00

Sydney

Australia · +5h

14:00

Time difference: PKT (Karachi) and BST (London)

PKT (Karachi) is 4 hours ahead of BST (London). When PKT (Karachi) clocks hit noon, BST (London) reads 08:00.

PKT (Karachi) observes Asia/Karachi and BST (London) observes Europe/London — a 4 hours gap between them.

Business hours comparison

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

00:0006:0012:0018:0024:00

PKT (Karachi)

BST (London)

Overlap (4h)

Optimal meeting slots

PKT (Karachi) and BST (London) share 4 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

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

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

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

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Holiday calendar for both locations

PKT (Karachi)

No upcoming public holidays this year.

BST (London)6 holidays

Jul 13Battle of the Boyne

Aug 3Summer Bank Holiday

Aug 31Summer Bank Holiday

Nov 30Saint Andrew's Day

Dec 25Christmas Day

Working across PKT (Karachi) and BST (London)

Coordinating between PKT (Karachi) (Pakistan) and BST (London) (United Kingdom) means working around a 4-hour time difference. The 4-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.

💡 Best practice for cross-timezone meetings

✅

Schedule at 13:00–14:00 (PKT (Karachi)) for a 09:00–10:00 slot in BST (London) — the sweet spot where both teams are working.

✅

Schedule at 14:00–15:00 (PKT (Karachi)) for a 10:00–11:00 slot in BST (London) — the sweet spot where both teams are working.

✅

Schedule at 15:00–16:00 (PKT (Karachi)) for a 11:00–12:00 slot in BST (London) — the sweet spot where both teams are working.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any PKT (Karachi) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

PKT (Karachi) ↔ BST (London)

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

PKT (Karachi)

BST (London)

00:00

20:00-1d

01:00

21:00-1d

02:00

22:00-1d

03:00

23:00-1d

04:00

00:00

05:00

01:00

06:00

02:00

07:00

03:00

08:00

04:00

09:00Working

05:00off

10:00Working

06:00off

11:00Working

07:00off

12:00Working

08:00off

13:00Working

09:00Working

14:00Working

10:00Working

15:00Working

11:00Working

16:00Working

12:00Working

17:00

13:00Working

18:00

14:00Working

19:00

15:00Working

20:00

16:00Working

21:00

17:00

22:00

18:00

23:00

19:00

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

Frequently Asked Questions

What is the difference between pkt and bst?

Pakistan Standard Time (pkt) is UTC+5 and British Summer Time (bst) is UTC+1. 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 bst used?

British Summer Time (bst) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London. Note: bst is ambiguous and may refer to other timezones.

How do I convert pkt to bst?

Use the interactive converter above. Drag the time slider to any pkt time and the bst 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 BST conversions

New York → BST Tokyo → BST Dubai → BST Sydney → BST Paris → BST Berlin → BST Singapore → BST Los Angeles → BST Toronto → BST Mumbai → BST