JST to Bonn Time Converter
CET is 8 hours behind JST. 9:00 AM JST = 1:00 AM CET.
CET is 8 hours behind JST at the moment. To convert JST to Bonn Time, subtract 8 hours from the JST time: 9:00 AM JST = 1:00 AM CET.
JST (Japan Time) is used in Japan. Bonn Time (Bonn time) is used in Bonn, Germany.
JST to Bonn Time time conversion table
JST to Bonn Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | Bonn Time | Day |
|---|---|---|
| 12:00 AM JST | 4:00 PM CET | previous day |
| 1:00 AM JST | 5:00 PM CET | previous day |
| 2:00 AM JST | 6:00 PM CET | previous day |
| 3:00 AM JST | 7:00 PM CET | previous day |
| 4:00 AM JST | 8:00 PM CET | previous day |
| 5:00 AM JST | 9:00 PM CET | previous day |
| 6:00 AM JST | 10:00 PM CET | previous day |
| 7:00 AM JST | 11:00 PM CET | previous day |
| 8:00 AM JST | 12:00 AM CET | night |
| 9:00 AM JST | 1:00 AM CET | night |
| 10:00 AM JST | 2:00 AM CET | night |
| 11:00 AM JST | 3:00 AM CET | night |
| 12:00 PM JST | 4:00 AM CET | night |
| 1:00 PM JST | 5:00 AM CET | night |
| 2:00 PM JST | 6:00 AM CET | — |
| 3:00 PM JST | 7:00 AM CET | — |
| 4:00 PM JST | 8:00 AM CET | — |
| 5:00 PM JST | 9:00 AM CET | — |
| 6:00 PM JST | 10:00 AM CET | — |
| 7:00 PM JST | 11:00 AM CET | — |
| 8:00 PM JST | 12:00 PM CET | — |
| 9:00 PM JST | 1:00 PM CET | — |
| 10:00 PM JST | 2:00 PM CET | — |
| 11:00 PM JST | 3:00 PM CET | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert JST to Bonn Time
Subtract 8 hours from the JST time to get Bonn Time.
Example: 9:00 AM JST = 1:00 AM CET.
Across midnight: 1:00 AM JST = 5:00 PM CET (previous day). The date changes, so always check the day as well as the hour.
Time difference between JST and Bonn Time
The time difference between JST and Bonn Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 28 Mar 2026: Bonn Time is 8 hours behind of JST.
- 29 Mar 2026 – 24 Oct 2026: Bonn Time is 7 hours behind of JST.
- 25 Oct 2026 – 31 Dec 2026: Bonn Time is 8 hours behind of JST.
JST and Bonn Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- 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).
Best time for a meeting between JST and Bonn Time
JST and Bonn Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM JST, which is 7:00 AM CET.
JST to Bonn Time FAQ
What is the time difference between JST and Bonn Time?
Right now CET is 8 hours behind JST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM JST in Bonn Time?
9:00 AM JST is 1:00 AM CET.
What is 12 PM (noon) JST in Bonn Time?
12:00 PM JST is 4:00 AM CET.
Is Bonn Time ahead of or behind JST?
CET is 8 hours behind JST, so it is earlier in Bonn Time than in JST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving 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.
What is the best time for a meeting between JST and Bonn Time?
JST and Bonn Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM JST, which is 7:00 AM CET.
Related conversions
Convert Bonn Time to JST
Convert JST to other time zones
Convert other time zones to Bonn Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.