Japan is 8 hours ahead of Portugal. When it's noon in Japan, it's 04:00 in Portugal.
Japan runs on Asia/Tokyo; Portugal runs on Europe/Lisbon. Together they are 8 hours apart.
Mutual working hours
There is no business hours overlap between Japan and Portugal during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best call times between these locations
Japan and Portugal have no shared working window. These slots minimize out-of-hours disruption for both sides.
16:00 Tokyo / 08:00 Lisbon⚡ One side off-hours
⚠️ 1h before working hours in Lisbon
17:00 Tokyo / 09:00 Lisbon⚡ One side off-hours
⚠️ 1h after working hours in Tokyo
15:00 Tokyo / 07:00 Lisbon⚡ One side off-hours
⚠️ 2h before working hours in Lisbon
Working hours defined as 09:00–17:00 local time for each location.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
Japan7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
Portugal8 holidays
Jul 1Madeira Day
Aug 15Assumption Day
Oct 5Republic Day
Nov 1All Saints Day
Dec 1Restoration of Independence
Japan and Portugal — practical scheduling
Japan (Japan) and Portugal (Portugal) are 8 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.
💡 Practical scheduling guidelines
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A 16:00 meeting in Japan means 08:00 in Portugal (1h before working hours in Lisbon).
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A 17:00 meeting in Japan means 09:00 in Portugal (1h after working hours in Tokyo).
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A 15:00 meeting in Japan means 07:00 in Portugal (2h before working hours in Lisbon).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am Japan".
