What is the time difference between WET and JST?

Japan Standard Time (JST) is 8 hours ahead of Western European Time (WET). WET uses a UTC offset of UTC+1, while JST uses UTC+9. For example, when it's 9:00 AM in WET, it's 5:00 PM in JST. Note that this difference may shift by one hour during daylight saving time transitions if WET observes DST. Use the conversion table above to see the exact time for each hour of the day.

How do I convert WET to JST?

To convert WET to JST, add 8 hours to the WET time. For example, 9:00 AM WET is 5:00 PM JST, and 5:00 PM WET is 1:00 AM JST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in JST when it's noon in WET?

When it's 12:00 PM (noon) in WET, it's 8:00 PM in JST. This is because JST is 8 hours ahead of WET. Similarly, when it's 6:00 PM in WET, it's 2:00 AM in JST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours ahead is JST from WET?

JST is 8 hours ahead of WET. This means when it's 9:00 AM in WET, it's 5:00 PM in JST, and when it's midnight in WET, it's 8:00 AM in JST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is JST ahead or behind WET?

JST is ahead of WET by 8 hours. Clocks in JST show a later time than WET, meaning the day starts earlier in JST relative to WET. For example, when it's morning in WET, it's already afternoon or evening in JST. This gap may change by one hour during DST transitions.

Does WET observe daylight saving time?

Yes, Western European Time observes daylight saving time. During DST, the abbreviation changes to WEST and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard WET time. This means the UTC offset for WET shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your WET to JST conversions.

Does JST observe daylight saving time?

No, Japan Standard Time does not observe daylight saving time. The UTC offset of UTC+9 remains the same year-round, making time conversions to JST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

What is the best time to call from WET to JST?

The best time for a call between WET and JST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in JST during their work day, call between 1:00 AM and 9:00 AM your WET time. Avoid calling too early or late, as the 8 hours difference means your evening could be their late night. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in WET?

Daylight saving time transitions vary by year and region. Western European Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between WET and JST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do WET and JST ever have the same time?

No, WET and JST never show the same time because their base UTC offsets are different. However, because WET observes daylight saving time and JST does not, the time difference between them changes by one hour during DST transitions. This means the gap narrows or widens depending on the season, but the two clocks never align. Always verify the current offset around DST transition dates to avoid scheduling errors.

WET to JST Converter

Convert Western European Time to Japan Standard Time. See the hour-by-hour conversion table below.

Upcoming DST Change

Western European Time (WEST) will fall back on October 25. Clocks will shift by 1 hour (WEST → WET).

View all DST changes

Timezone Details

Western European Time

5:39 PM

Tuesday, October 20, 2026

WEST (UTC+01:00)

Japan Standard Time

1:39 AM

Wednesday, October 21, 2026

JST (UTC+09:00)

Difference: +8 hours

WEST DST: Yes (WEST)

JST DST: No

24-Hour Overview

WEST — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

JST — 24-hour overview

8a8a

10a

11a11a

12p

2p2p

5p5p

8p8p

10p

11p11p

12a

2a2a

5a5a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

JST to WET EST to JST JST to EST PST to JST JST to PST GMT to JST JST to GMT IST to JST JST to IST

Cities in These Timezones

WET Cities

Lisbon Porto

JST Cities

Tokyo Osaka Fukuoka

More Tools

Compare WET & JST Plan a Meeting (WET & JST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Western European Time on Wikipedia Japan Standard Time on Wikipedia IANA Time Zone Database