Japan is 7 hours ahead of South Africa. When Japan clocks hit noon, South Africa reads 05:00.
Japan observes Asia/Tokyo and South Africa observes Africa/Johannesburg — a 7 hours gap between them.
Business hours comparison
Every working day, Japan and South Africa are both in business hours for 1 hour simultaneously.
00:0006:0012:0018:0024:00
Japan
South Africa
Overlap (1h)
Optimal meeting slots
Japan and South Africa share 1 hour of business hours overlap daily.
16:00 Tokyo / 09:00 Johannesburg✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
Japan7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
South Africa5 holidays
Aug 10National Women's Day
Sep 24Heritage Day
Dec 16Day of Reconciliation
Dec 25Christmas Day
Dec 26Day of Goodwill
Working across Japan and South Africa
Coordinating between Japan (Japan) and South Africa (South Africa) means working around a 7-hour time difference. The 1-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 Best practice for cross-timezone meetings
✅
Schedule at 16:00–17:00 (Japan) for a 09:00–10:00 slot in South Africa — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any Japan time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
