Convert time from WET to JST. Enter any time to see the equivalent JST time, compare current WET and JST times side by side, and find overlapping business hours for calls and meetings.
Use this WET to JST converter to compare Portugal and Japan time, check the 9 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM WET / 6:00 PM JST.
Converting between Western European Time and Japan Standard Time means accounting for a 9 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Western European Time (UTC +0) that you want to convert. Hit "Now" to load the current wet time instantly, or use "+1h" to step forward and compare.
The equivalent Japan Standard Time (UTC +9) time appears immediately. Since jst is 9 hours ahead of wet, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the jst result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring Portugal–Japan calls.
When someone in Portugal suggests 9:00 AM wet, that's 6:00 PM jst. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night wet times can land on a different date in jst because of the 9 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the wet–jst gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in wet. Convert the event time to jst so you know exactly when to tune in — with a 9 hours difference, a morning event in Portugal falls during work hours in Japan.
Quick-reference conversion table covering every hour of the day at a glance.
Western European Time to Japan Standard Time full day schedule
| Western European Time | Japan Standard Time |
|---|---|
| 12:00 AM |
9:00 AM
|
| 1:00 AM |
10:00 AM
|
| 2:00 AM |
11:00 AM
|
| 3:00 AM |
12:00 PM
|
| 4:00 AM |
1:00 PM
|
| 5:00 AM |
2:00 PM
|
| 6:00 AM |
3:00 PM
|
| 7:00 AM |
4:00 PM
|
| 8:00 AM |
5:00 PM
|
| 9:00 AM |
6:00 PM
|
| 10:00 AM |
7:00 PM
|
| 11:00 AM |
8:00 PM
|
| 12:00 PM |
9:00 PM
|
| 1:00 PM |
10:00 PM
|
| 2:00 PM |
11:00 PM
|
| 3:00 PM |
12:00 AM
(next day)
|
| 4:00 PM |
1:00 AM
(next day)
|
| 5:00 PM |
2:00 AM
(next day)
|
| 6:00 PM |
3:00 AM
(next day)
|
| 7:00 PM |
4:00 AM
(next day)
|
| 8:00 PM |
5:00 AM
(next day)
|
| 9:00 PM |
6:00 AM
(next day)
|
| 10:00 PM |
7:00 AM
(next day)
|
| 11:00 PM |
8:00 AM
(next day)
|
Japan — one of the few large economies that has no DST, so JST is JST year-round (UTC+9). Business hours 9 AM – 6 PM JST with strong presence-based culture (staying past 7 PM is common). Same offset as Korean Standard Time (KST).
Explore more wet conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into Japan Standard Time. Use these pages when scheduling with Japan from a different region.
