Bonn Time to BST Converter
GMT is 1 hour behind CET. 9:00 AM CET = 8:00 AM GMT.
GMT is 1 hour behind CET. To convert Bonn Time to BST, subtract 1 hour from the Bonn Time time: 9:00 AM CET = 8:00 AM GMT.
Bonn Time (Bonn time) is used in Bonn, Germany. BST (British Time) is used in United Kingdom from late March to late October.
BST here means British Summer Time, not Bangladesh Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.
Bonn Time to BST time conversion table
Bonn Time to BST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Bonn Time | BST | Day |
|---|---|---|
| 12:00 AM CET | 11:00 PM GMT | previous day |
| 1:00 AM CET | 12:00 AM GMT | night |
| 2:00 AM CET | 1:00 AM GMT | night |
| 3:00 AM CET | 2:00 AM GMT | night |
| 4:00 AM CET | 3:00 AM GMT | night |
| 5:00 AM CET | 4:00 AM GMT | night |
| 6:00 AM CET | 5:00 AM GMT | night |
| 7:00 AM CET | 6:00 AM GMT | — |
| 8:00 AM CET | 7:00 AM GMT | — |
| 9:00 AM CET | 8:00 AM GMT | — |
| 10:00 AM CET | 9:00 AM GMT | work hours |
| 11:00 AM CET | 10:00 AM GMT | work hours |
| 12:00 PM CET | 11:00 AM GMT | work hours |
| 1:00 PM CET | 12:00 PM GMT | work hours |
| 2:00 PM CET | 1:00 PM GMT | work hours |
| 3:00 PM CET | 2:00 PM GMT | work hours |
| 4:00 PM CET | 3:00 PM GMT | work hours |
| 5:00 PM CET | 4:00 PM GMT | — |
| 6:00 PM CET | 5:00 PM GMT | — |
| 7:00 PM CET | 6:00 PM GMT | — |
| 8:00 PM CET | 7:00 PM GMT | — |
| 9:00 PM CET | 8:00 PM GMT | — |
| 10:00 PM CET | 9:00 PM GMT | — |
| 11:00 PM CET | 10:00 PM GMT | night |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Bonn Time to BST
Subtract 1 hour from the Bonn Time time to get BST.
Example: 9:00 AM CET = 8:00 AM GMT.
Across midnight: 12:00 AM CET = 11:00 PM GMT (previous day). The date changes, so always check the day as well as the hour.
Time difference between Bonn Time and BST
The time difference between Bonn Time and BST is 1 hour all year – GMT is behind CET.
Bonn Time and BST during daylight saving time
- Bonn Time next changes on 28 Mar 2027: clocks go forward one hour at 01:59 local time, from CET (UTC+1) to CEST (UTC+2).
- BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
Best time for a meeting between Bonn Time and BST
Bonn Time and BST share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM CET lands between 9:00 AM and 4:00 PM GMT, inside working hours for both.
Bonn Time to BST FAQ
What is the time difference between Bonn Time and BST?
GMT is 1 hour behind CET all year. 9:00 AM CET = 8:00 AM GMT.
What is 9 AM Bonn Time in BST?
9:00 AM CET is 8:00 AM GMT.
What is 12 PM (noon) Bonn Time in BST?
12:00 PM CET is 11:00 AM GMT.
Is BST ahead of or behind Bonn Time?
GMT is 1 hour behind CET, so it is earlier in BST than in Bonn Time.
Does Bonn Time change for daylight saving time?
Yes. Bonn Time next changes on 28 Mar 2027, when clocks go forward one hour from CET to CEST.
Does BST change for daylight saving time?
Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
What is the best time for a meeting between Bonn Time and BST?
Bonn Time and BST share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM CET lands between 9:00 AM and 4:00 PM GMT, inside working hours for both.
Related conversions
Convert BST to Bonn Time
Convert Bonn Time to other time zones
Convert other time zones to BST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.