JST to Rouen 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 Rouen Time, subtract 8 hours from the JST time: 9:00 AM JST = 1:00 AM CET.
JST (Japan Time) is used in Japan. Rouen Time (Rouen time) is used in Rouen, France.
JST to Rouen Time time conversion table
JST to Rouen Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | Rouen 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 Rouen Time
Subtract 8 hours from the JST time to get Rouen 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 Rouen Time
The time difference between JST and Rouen 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: Rouen Time is 8 hours behind of JST.
- 29 Mar 2026 – 24 Oct 2026: Rouen Time is 7 hours behind of JST.
- 25 Oct 2026 – 31 Dec 2026: Rouen Time is 8 hours behind of JST.
JST and Rouen Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- Rouen 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 Rouen Time
JST and Rouen 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 Rouen Time FAQ
What is the time difference between JST and Rouen 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 Rouen Time?
9:00 AM JST is 1:00 AM CET.
What is 12 PM (noon) JST in Rouen Time?
12:00 PM JST is 4:00 AM CET.
Is Rouen Time ahead of or behind JST?
CET is 8 hours behind JST, so it is earlier in Rouen 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 Rouen Time change for daylight saving time?
Yes. Rouen 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 Rouen Time?
JST and Rouen 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 Rouen Time to JST
Convert JST to other time zones
Convert other time zones to Rouen Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.