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