Karachi to London time converter
Karachi is 5 hours ahead of London in winter (GMT) and 4 hours ahead in summer (BST). Pick a date and time in Karachi to see the matching time and day in London.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter date in karachi and time in karachi.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
London time = Karachi time + (London offset - Karachi offset). Karachi stays on UTC+5; London uses UTC+0 in winter (GMT) and UTC+1 in summer (BST), read for the chosen date from the IANA zone Europe/London.
Example
Inputs: Date in Karachi = 2026-07-15, Time in Karachi = 09:00. Result: Time in London: 05:00 Wednesday; Date in London: Wednesday, July 15, 2026 (2026-07-15); Difference (London vs Karachi): -4 h.
Limits and caveats
- DST dates come from the device time-zone database, so an outdated browser can be off by an hour near a rule change.
- Shows official clock time only; it does not account for weekends or public holidays.
Questions about this tool
What is the time difference between Karachi and London?
Karachi is 5 hours ahead of London in winter (GMT) and 4 hours ahead in summer (BST). The UK moves its clocks forward on the last Sunday of March and back on the last Sunday of October. Karachi stays on UTC+5 all year.
If it is 09:00 in Karachi, what time is it in London?
It is 04:00 in London in winter (GMT) and 05:00 in summer (BST).
When can I reach an office in London from Karachi?
A 09:00 to 17:00 working day in London runs from 14:00 to 22:00 Karachi time in winter (GMT), and from 13:00 to 21:00 in summer (BST).