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JST to WAT Converter

WAT is 8 hours behind JST

Current JST Time
--:--:-- --
Asia/Tokyo
Current WAT Time
--:--:-- --
Africa/Lagos
Time Diff
8h behind
JST
UTC+9
WAT
UTC+1

JST to WAT Conversion Table

Green rows indicate standard business hours (9 AM – 5 PM) in WAT

JST to WAT time conversion table showing all 24 hours
JST WAT
12:00 AM 4:00 PM -1d
1:00 AM 5:00 PM -1d
2:00 AM 6:00 PM -1d
3:00 AM 7:00 PM -1d
4:00 AM 8:00 PM -1d
5:00 AM 9:00 PM -1d
6:00 AM 10:00 PM -1d
7:00 AM 11:00 PM -1d
8:00 AM 12:00 AM
9:00 AM 1:00 AM
10:00 AM 2:00 AM
11:00 AM 3:00 AM
12:00 PM 4:00 AM
1:00 PM 5:00 AM
2:00 PM 6:00 AM
3:00 PM 7:00 AM
4:00 PM 8:00 AM
5:00 PM 9:00 AM
6:00 PM 10:00 AM
7:00 PM 11:00 AM
8:00 PM 12:00 PM
9:00 PM 1:00 PM
10:00 PM 2:00 PM
11:00 PM 3:00 PM

Converting Japan Standard Time to West Africa Time

Japan Standard Time (JST) and West Africa Time (WAT) are separated by a 8 hours time difference. WAT is 8 hours behind JST. JST is UTC+9, used in Japan, while WAT is UTC+1, used in Nigeria, Cameroon, Niger.

When converting from JST to WAT, the key reference points to remember are: 9:00 AM JST equals 1:00 AM WAT, 12:00 PM noon JST equals 4:00 AM WAT, and 5:00 PM JST equals 9:00 AM WAT. The conversion table above shows every hour of the day mapped between these two time zones.

Scheduling Across JST and WAT

For professionals scheduling meetings between JST and WAT, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 8 hours difference, the window of overlap may be limited, making early morning or late evening calls necessary for one party. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.

Daylight Saving Time Considerations

JST does not observe Daylight Saving Time, maintaining UTC+9 year-round. WAT does not observe DST, staying at UTC+1 year-round.

Frequently Asked Questions

What is the time difference between JST and WAT?
West Africa Time (WAT) is 8 hours behind Japan Standard Time (JST). When it is 12:00 PM noon in JST, it is 4:00 AM in WAT.
How do I convert JST to WAT?
To convert JST to WAT, subtract 8 hours from the JST time. For example, 9:00 AM JST is 1:00 AM WAT. Use the conversion table above for a quick reference of all 24 hours.
Does JST or WAT observe Daylight Saving Time?
JST does not observe Daylight Saving Time. WAT does not observe Daylight Saving Time. During DST transitions, the time difference between these zones may change by 1 hour.
What is the best time to schedule a call between JST and WAT?
The best time to schedule a call between JST and WAT is during overlapping business hours. If you are in JST, try scheduling between 9:00 AM and 5:00 PM your time, then check the conversion table above to see what that corresponds to in WAT.
Is JST ahead or behind WAT?
JST (UTC+9) is 8 hours ahead of WAT (UTC+1). JST corresponds to the IANA time zone Asia/Tokyo, while WAT corresponds to Africa/Lagos.

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Time Zone Info