PKT to BST Time Converter
BST is 4 hours behind PKT. PKT is UTC+5:00, and BST is UTC+1:00.
Best Time to Call Between PKT and BST
Both zones are inside normal business hours between 1:00 PM and 5:00 PM PKT — that's 9:00 AM to 1:00 PM BST. That's a 4-hour window.
both at work PKT only BST only neither — hours along the strip are PKT.
Common Times Converted
PKT on the left, BST on the right.
PKT to BST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| PKT | BST | Working hours |
|---|---|---|
| 12:00 AM | 8:00 PM prev day | — |
| 1:00 AM | 9:00 PM prev day | — |
| 2:00 AM | 10:00 PM prev day | — |
| 3:00 AM | 11:00 PM prev day | — |
| 4:00 AM | 12:00 AM | — |
| 5:00 AM | 1:00 AM | — |
| 6:00 AM | 2:00 AM | — |
| 7:00 AM | 3:00 AM | — |
| 8:00 AM | 4:00 AM | — |
| 9:00 AM | 5:00 AM | PKT only |
| 10:00 AM | 6:00 AM | PKT only |
| 11:00 AM | 7:00 AM | PKT only |
| 12:00 PM | 8:00 AM | PKT only |
| 1:00 PM | 9:00 AM | Both zones |
| 2:00 PM | 10:00 AM | Both zones |
| 3:00 PM | 11:00 AM | Both zones |
| 4:00 PM | 12:00 PM | Both zones |
| 5:00 PM | 1:00 PM | BST only |
| 6:00 PM | 2:00 PM | BST only |
| 7:00 PM | 3:00 PM | BST only |
| 8:00 PM | 4:00 PM | BST only |
| 9:00 PM | 5:00 PM | — |
| 10:00 PM | 6:00 PM | — |
| 11:00 PM | 7:00 PM | — |
What PKT and BST Actually Are
PKT — Pakistan Standard Time
Karachi, Lahore, Islamabad, Faisalabad. Standing at UTC+5:00 as written, and the region does not change its clocks, so that offset holds all year.
Pakistan tried daylight saving in 2008 and 2009 to ease electricity shortages, then dropped it after public objection.
BST — British Summer Time
London, Manchester, Birmingham, Glasgow, and the rest of the UK from late March to late October. Standing at UTC+1:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to GMT. BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.
British Summer Time began in 1916 as a wartime fuel-saving measure and has run every year since, making it one of the oldest continuous daylight saving schemes in the world.
What This Means in Practice
This gap is not fixed
BST changes its clocks and PKT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on PKT
Cities on BST
Frequently Asked Questions
What is the time difference between PKT and BST?
BST is 4 hours behind PKT.
What is 9:00 AM PKT in BST?
9:00 AM PKT is 5:00 AM BST.
What are the best hours to schedule a call between PKT and BST?
Between 1:00 PM and 5:00 PM PKT, which is 9:00 AM to 1:00 PM BST. Both sides are inside normal business hours through that window.
Does the difference between PKT and BST change during the year?
Yes. BST observes daylight saving and PKT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.
Does BST always mean British Summer Time?
BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.