WEST to JST: WEST is 8 hours behind JST
Western European Time is 8 hours behind Japan Standard Time right now. It is 3:49 am WEST in Lisbon and 11:49 am JST in Japan.
Convert a specific time from WEST to JST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between WEST and JST?
Japan Standard Time is 8 hours ahead of Western European Time. To go from WEST to JST you add 8 hours. That gap is not fixed. Across 2026 the distance between these two zones takes 2 different values, from 8 hours to 9 hours, because Lisbon moves its clocks and Japan does not. This page recomputes it rather than assuming.
WEST to JST conversion table
Every hour of Sunday, September 27, 2026 in Lisbon, with the matching reading in Japan. 8 of the 24 hours land on a different calendar date in Japan, which is the part people get wrong when they schedule across this pair.
| WEST | WEST 24h | JST | JST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 8:00 am | 08:00 | same day |
| 1:00 am | 01:00 | 9:00 am | 09:00 | same day |
| 2:00 am | 02:00 | 10:00 am | 10:00 | same day |
| 3:00 am | 03:00 | 11:00 am | 11:00 | same day |
| 4:00 am | 04:00 | 12:00 pm | 12:00 | same day |
| 5:00 am | 05:00 | 1:00 pm | 13:00 | same day |
| 6:00 am | 06:00 | 2:00 pm | 14:00 | same day |
| 7:00 am | 07:00 | 3:00 pm | 15:00 | same day |
| 8:00 am | 08:00 | 4:00 pm | 16:00 | same day |
| 9:00 am | 09:00 | 5:00 pm | 17:00 | same day |
| 10:00 am | 10:00 | 6:00 pm | 18:00 | same day |
| 11:00 am | 11:00 | 7:00 pm | 19:00 | same day |
| 12:00 pm | 12:00 | 8:00 pm | 20:00 | same day |
| 1:00 pm | 13:00 | 9:00 pm | 21:00 | same day |
| 2:00 pm | 14:00 | 10:00 pm | 22:00 | same day |
| 3:00 pm | 15:00 | 11:00 pm | 23:00 | same day |
| 4:00 pm | 16:00 | 12:00 am | 00:00 | the next day |
| 5:00 pm | 17:00 | 1:00 am | 01:00 | the next day |
| 6:00 pm | 18:00 | 2:00 am | 02:00 | the next day |
| 7:00 pm | 19:00 | 3:00 am | 03:00 | the next day |
| 8:00 pm | 20:00 | 4:00 am | 04:00 | the next day |
| 9:00 pm | 21:00 | 5:00 am | 05:00 | the next day |
| 10:00 pm | 22:00 | 6:00 am | 06:00 | the next day |
| 11:00 pm | 23:00 | 7:00 am | 07:00 | the next day |
What are the best hours to schedule a call between WEST and JST?
No hour of the standard 9:00 am to 5:00 pm working day falls inside working hours on both sides. Lisbon and Japan are 8 hours apart, which is too far for an overlap, so somebody has to take a call outside their own working day. The least painful options are below, ranked by how close both sides sit to the middle of the afternoon.
| WEST | JST | Working hours | Note |
|---|---|---|---|
| 7:00 am | 3:00 pm | JST only | early morning in Lisbon, afternoon in Japan |
| 8:00 am | 4:00 pm | JST only | mid morning in Lisbon, afternoon in Japan |
| 9:00 am | 5:00 pm | WEST only | mid morning in Lisbon, evening in Japan |
Does daylight saving change WEST to JST?
Western European Time is currently on WEST and changes next on Sunday, October 25, 2026, when the clock falls back from 1:59 am to 1:00 am and the offset moves from UTC+1 to UTC+0.
Japan Standard Time does not move its clocks at all, so its UTC+9 offset holds every day of the year.
Because the two sides do not move together, the answer to this conversion changes during the year. For part of the year the gap is 8 hours and for the rest it is 9 hours. The table above is built for today, not for an average day.
Is WEST ahead of or behind JST?
WEST is behind JST by 8 hours: when it is 12:00 pm in Lisbon, it is 8:00 pm in Japan. One wrinkle worth knowing: WET and WEST are two names for the same zone, not two zones. Western European Time reads WET in winter and WEST in summer. When somebody types "wet to jst" they nearly always mean the zone rather than the literal winter offset, so this page resolves WET to Europe/Lisbon and JST to Asia/Tokyo and applies whichever offset is genuinely in force on the day.
Western European Time covers Lisbon, Porto and the Canary Islands, one hour behind most of the continent. Japan Standard Time covers Tokyo, Osaka and the whole of Japan. The identifiers behind them are Europe/Lisbon and Asia/Tokyo, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is WEST in JST?
- WEST is 8 hours behind JST. 9:00 am WEST is 5:00 pm JST.
- How many hours ahead is JST of WEST?
- JST is 8 hours ahead of WEST. That varies across the year, between 8 hours and 9 hours.
- What time is it in Japan right now?
- 11:49 am JST on Sunday, September 27, 2026.
- When can Lisbon and Japan meet during working hours?
- There is no shared working hour. The closest fit is 7:00 am WEST, which is 3:00 pm JST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so WEST and JST are the abbreviations genuinely in force today rather than a fixed assumption.
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