Ireland Time to JST Converter
JST is 9 hours ahead of WET. 9:00 AM WET = 6:00 PM JST.
JST is 9 hours ahead of WET at the moment. To convert Ireland Time to JST, add 9 hours to the Ireland Time time: 9:00 AM WET = 6:00 PM JST.
Ireland Time (Ireland time) is used in Ireland. JST (Japan Time) is used in Japan.
Ireland Time to JST time conversion table
Ireland Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Ireland Time | JST | Day |
|---|---|---|
| 12:00 AM WET | 9:00 AM JST | — |
| 1:00 AM WET | 10:00 AM JST | — |
| 2:00 AM WET | 11:00 AM JST | — |
| 3:00 AM WET | 12:00 PM JST | — |
| 4:00 AM WET | 1:00 PM JST | — |
| 5:00 AM WET | 2:00 PM JST | — |
| 6:00 AM WET | 3:00 PM JST | — |
| 7:00 AM WET | 4:00 PM JST | — |
| 8:00 AM WET | 5:00 PM JST | — |
| 9:00 AM WET | 6:00 PM JST | — |
| 10:00 AM WET | 7:00 PM JST | — |
| 11:00 AM WET | 8:00 PM JST | — |
| 12:00 PM WET | 9:00 PM JST | — |
| 1:00 PM WET | 10:00 PM JST | night |
| 2:00 PM WET | 11:00 PM JST | night |
| 3:00 PM WET | 12:00 AM JST | next day |
| 4:00 PM WET | 1:00 AM JST | next day |
| 5:00 PM WET | 2:00 AM JST | next day |
| 6:00 PM WET | 3:00 AM JST | next day |
| 7:00 PM WET | 4:00 AM JST | next day |
| 8:00 PM WET | 5:00 AM JST | next day |
| 9:00 PM WET | 6:00 AM JST | next day |
| 10:00 PM WET | 7:00 AM JST | next day |
| 11:00 PM WET | 8:00 AM JST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Ireland Time to JST
Add 9 hours to the Ireland Time time to get JST.
Example: 9:00 AM WET = 6:00 PM JST.
Across midnight: 10:00 PM WET = 7:00 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between Ireland Time and JST
The time difference between Ireland 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 9 hours ahead of Ireland Time.
- 29 Mar 2026 – 24 Oct 2026: JST is 8 hours ahead of Ireland Time.
- 25 Oct 2026 – 31 Dec 2026: JST is 9 hours ahead of Ireland Time.
Ireland Time and JST during daylight saving time
- Ireland Time next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from WET (UTC+0) to WET (UTC+1).
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between Ireland Time and JST
Ireland Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM WET, which is 4:00 PM JST.
Ireland Time to JST FAQ
What is the time difference between Ireland Time and JST?
Right now JST is 9 hours ahead of WET. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Ireland Time in JST?
9:00 AM WET is 6:00 PM JST.
What is 12 PM (noon) Ireland Time in JST?
12:00 PM WET is 9:00 PM JST.
Is JST ahead of or behind Ireland Time?
JST is 9 hours ahead of WET, so it is later in JST than in Ireland Time.
Does Ireland Time change for daylight saving time?
Yes. Ireland Time next changes on 28 Mar 2027, when clocks go forward one hour from WET to WET.
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 Ireland Time and JST?
Ireland Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM WET, which is 4:00 PM JST.
Related conversions
Convert JST to Ireland Time
Convert Ireland Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.