WEST to JST Time Converter
Use this WEST to JST time converter to compare Western Europe and Japan time instantly. JST is 8 hours ahead of WEST, so 9:00 AM WEST becomes 5:00 PM JST and 5:00 PM WEST becomes 1:00 AM (next day) JST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
WEST to JST Quick Facts
Use this WEST to JST converter to compare Western Europe and Japan time, check the 8 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM WEST / 5:00 PM JST.
How to Convert WEST to JST
Converting between Western European Summer Time and Japan Standard Time means accounting for a 8 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Western European Summer Time (UTC +1) that you want to convert. Hit "Now" to load the current WEST time instantly, or use "+1h" to step forward and compare.
The equivalent Japan Standard Time (UTC +9) time appears immediately. Since JST is 8 hours ahead of WEST, 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 Western Europe–Japan calls.
Why Choose Our WEST to JST Converter
When someone in Western Europe suggests 9:00 AM WEST, that's 5:00 PM JST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night WEST times can land on a different date in JST because of the 8 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 WEST–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 WEST. Convert the event time to JST so you know exactly when to tune in — with a 8 hours difference, a morning event in Western Europe falls during work hours in Japan.
WEST to JST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Western European Summer Time to Japan Standard Time full day schedule
| Western European Summer Time | Japan Standard Time |
|---|---|
| 12:00 AM |
8:00 AM
|
| 1:00 AM |
9:00 AM
|
| 2:00 AM |
10:00 AM
|
| 3:00 AM |
11:00 AM
|
| 4:00 AM |
12:00 PM
|
| 5:00 AM |
1:00 PM
|
| 6:00 AM |
2:00 PM
|
| 7:00 AM |
3:00 PM
|
| 8:00 AM |
4:00 PM
|
| 9:00 AM |
5:00 PM
|
| 10:00 AM |
6:00 PM
|
| 11:00 AM |
7:00 PM
|
| 12:00 PM |
8:00 PM
|
| 1:00 PM |
9:00 PM
|
| 2:00 PM |
10:00 PM
|
| 3:00 PM |
11:00 PM
|
| 4:00 PM |
12:00 AM
(next day)
|
| 5:00 PM |
1:00 AM
(next day)
|
| 6:00 PM |
2:00 AM
(next day)
|
| 7:00 PM |
3:00 AM
(next day)
|
| 8:00 PM |
4:00 AM
(next day)
|
| 9:00 PM |
5:00 AM
(next day)
|
| 10:00 PM |
6:00 AM
(next day)
|
| 11:00 PM |
7:00 AM
(next day)
|
Timezone offsets and DST rules verified against the IANA Time Zone Database. Conversion math and business-hour overlap windows double-checked against real-world scheduling scenarios.
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