How many hours ahead is Prague compared to London?

Prague is typically 1 hour ahead of London. During a brief window each year when only one city has switched to summer time, the gap can briefly be 0 h or 2 h, but both settle at a 1-hour difference for most of the year.

Does the offset change with daylight saving time?

Yes. Both the UK and Czech Republic observe DST, but their switch dates can differ by a week. During those transition weeks the difference may temporarily be 0 h or 2 h. The tool always shows the current real offset.

What time zones do London and Prague use?

London uses Europe/London: GMT (UTC+0) in winter and BST (UTC+1) in summer. Prague uses Europe/Prague: CET (UTC+1) in winter and CEST (UTC+2) in summer.

When is the best time to schedule a call between London and Prague?

With a 1-hour gap and similar business hours, most of the working day overlaps. A call between 09:00–17:00 London time maps to 10:00–18:00 Prague time — plenty of room for meetings.

Is this tool accurate during DST switchover days?

Yes. The tool uses the Intl.DateTimeFormat API in your browser, which applies the correct historical and future DST rules for both time zones without any manual adjustment.

Time Difference: London to Prague

Name: Time Difference: London to Prague
Availability: InStock
Author: Nham Vu

See the live time difference between London and Prague, with clocks and a meeting planner to find overlap hours.

London

Europe/London

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Prague

Europe/Prague

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Calculating offset…

Meeting Planner

Enter London time:

24-Hour Day at a Glance

London
Prague

Business hours (08:00–18:00) Off hours

Summary

See the live time difference between London and Prague, with clocks and a meeting planner to find overlap hours.

How it works

Your browser reads the current UTC time.
London time applies Europe/London rules (GMT in winter, BST +1 in summer).
Prague time applies Europe/Prague rules (CET +1 in winter, CEST +2 in summer).
The offset between them is computed and displayed live.
The meeting planner maps a full 24-hour window so you can spot business-hours overlap.

Use cases

Schedule a video call between a London office and a Prague team.
Check whether Prague colleagues are still at work when you log on in London.
Verify the offset during daylight-saving transitions (the gap can be 1 h or 2 h depending on the season).
Plan a Prague trip and know when to call family back in London.
Convert a specific London meeting time to Prague local time.
Confirm the Prague office opening time in London time before dialing.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu