Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between bst and cet?
British Summer Time (bst) is UTC+1 and Central European Time (cet) is UTC+2. The difference between them is 1 hours.
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.
Where is cet used?
Central European Time (cet) is used in France and surrounding regions. The IANA timezone identifier is Europe/Paris.
How do I convert bst to cet?
Use the interactive converter above. Drag the time slider to any bst time and the cet equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
BST (London) to CET (Paris) — exact time difference
BST (London) is 1 hour behind CET (Paris). At noon in BST (London), your contact in CET (Paris) sees 13:00.
BST (London) runs on Europe/London; CET (Paris) runs on Europe/Paris. Together they are 1 hour apart.
Working hours overlap
BST (London) and CET (Paris) share 7 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.
00:0006:0012:0018:0024:00
BST (London)
CET (Paris)
Overlap (7h)
Best call times between these locations
There is a 7-hour daily window where both locations are in business hours. The 3 best slots are listed below.
09:00 London / 10:00 Paris✓ Both working
10:00 London / 11:00 Paris✓ Both working
11:00 London / 12:00 Paris✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
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
CET (Paris)5 holidays
Jul 14Bastille Day
Aug 15Assumption Day
Nov 1All Saints' Day
Nov 11Armistice Day
Dec 25Christmas Day
Scheduling between BST (London) and CET (Paris)
BST (London) (United Kingdom) and CET (Paris) (France) are 1 hours apart. With a 7-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.
💡 Scheduling tips for these locations
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If you are in BST (London), aim for 09:00–10:00, which corresponds to 10:00–11:00 in CET (Paris) — both teams are within working hours.
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If you are in BST (London), aim for 10:00–11:00, which corresponds to 11:00–12:00 in CET (Paris) — both teams are within working hours.
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If you are in BST (London), aim for 11:00–12:00, which corresponds to 12:00–13:00 in CET (Paris) — 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.
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 BST (London)".