Offset
The time difference between West Africa Time and Japan Standard Time is 8 hours.
West Africa Time (WAT) is behind Japan Standard Time (JST).
WAT: UTC+1
JST: UTC+9
Neither West Africa Time nor Japan Standard Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in West Africa Time and Japan Standard Time don't overlap on the same weekday. Japan Standard Time is 8 hours ahead of West Africa Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–12 PM in West Africa Time (3 PM–8 PM in Japan Standard Time) — suggest 9:00 AM West Africa Time (5:00 PM Japan Standard Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Nigeria
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Workers' DayFri, May 1
- Children's DayWed, May 27
- Democracy DayFri, Jun 12
- National DayThu, Oct 1
- National Youth DaySun, Nov 1
- Christmas DayFri, Dec 25
- Boxing DayMon, Dec 28
Japan
- New Year's DayThu, Jan 1
- Coming of Age DayMon, Jan 12
- Foundation DayWed, Feb 11
- The Emperor's BirthdayMon, Feb 23
- Vernal Equinox DayFri, Mar 20
- Shōwa DayWed, Apr 29
- Constitution Memorial DayWed, May 6
- Greenery DayMon, May 4
- Children's DayTue, May 5
- Marine DayMon, Jul 20
- Mountain DayTue, Aug 11
- Respect for the Aged DayMon, Sep 21
- Autumnal Equinox DayWed, Sep 23
- Sports DayMon, Oct 12
- Culture DayTue, Nov 3
- Labour Thanksgiving DayMon, Nov 23
About these zones
West Africa Time is also known as WAT. To call Nigeria, dial +234.
Japan Standard Time is also known as JST. To call Japan, dial +81.
Japan Standard Time is approximately 8,350 miles northeast of West Africa Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| WAT | JST | Day |
|---|---|---|
| 12:00 am | 8:00 am | Same day |
| 1:00 am | 9:00 am | Same day |
| 2:00 am | 10:00 am | Same day |
| 3:00 am | 11:00 am | Same day |
| 4:00 am | 12:00 pm | Same day |
| 5:00 am | 1:00 pm | Same day |
| 6:00 am | 2:00 pm | Same day |
| 7:00 am | 3:00 pm | Same day |
| 8:00 am | 4:00 pm | Same day |
| 9:00 am | 5:00 pm | Same day |
| 10:00 am | 6:00 pm | Same day |
| 11:00 am | 7:00 pm | Same day |
| 12:00 pm | 8:00 pm | Same day |
| 1:00 pm | 9:00 pm | Same day |
| 2:00 pm | 10:00 pm | Same day |
| 3:00 pm | 11:00 pm | Same day |
| 4:00 pm | 12:00 am | +1 day |
| 5:00 pm | 1:00 am | +1 day |
| 6:00 pm | 2:00 am | +1 day |
| 7:00 pm | 3:00 am | +1 day |
| 8:00 pm | 4:00 am | +1 day |
| 9:00 pm | 5:00 am | +1 day |
| 10:00 pm | 6:00 am | +1 day |
| 11:00 pm | 7:00 am | +1 day |
Daylight saving time
Neither West Africa Time nor Japan Standard Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:31 AM
- Sunset
- 7:00 PM
- Day length
- 12h 29m
- Sunrise
- 4:27 AM
- Sunset
- 6:55 PM
- Day length
- 14h 28m
Daylight overlap: 4h 23m — 6:31 AM–10:55 AM in West Africa Time (2:31 PM–6:55 PM in Japan Standard Time). Both locations are in daylight during this window.
Cities in these zones
Cities in West Africa Time
Cities in Japan Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Airports in Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Related conversions
Common conversions
- What is 9:00 am WAT in JST?
- 9:00 am WAT is 5:00 pm JST.
- What is 12:00 pm WAT in JST?
- 12:00 pm WAT is 8:00 pm JST.
- What is 12:30 pm WAT in JST?
- 12:30 pm WAT is 8:30 pm JST.
- What is 2:00 pm WAT in JST?
- 2:00 pm WAT is 10:00 pm JST.
- What is 5:00 pm WAT in JST?
- 5:00 pm WAT is 1:00 am JST, the next day.
- What is 11:30 pm WAT in JST?
- 11:30 pm WAT is 7:30 am JST, the next day.