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WAT to AST Converter

AST is 5 hours behind WAT

Current WAT Time
--:--:-- --
Africa/Lagos
Current AST Time
--:--:-- --
America/Halifax
Time Diff
5h behind
WAT
UTC+1
AST
UTC-4
Overlapping hours: 2:00 PM – 5:00 PM WAT (3h)

WAT to AST Conversion Table

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

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

Converting West Africa Time to Atlantic Standard Time

West Africa Time (WAT) and Atlantic Standard Time (AST) are separated by a 5 hours time difference. AST is 5 hours behind WAT. WAT is UTC+1, used in Nigeria, Cameroon, Niger, while AST is UTC-4, used in Canada, Puerto Rico, US Virgin Islands.

When converting from WAT to AST, the key reference points to remember are: 9:00 AM WAT equals 4:00 AM AST, 12:00 PM noon WAT equals 7:00 AM AST, and 5:00 PM WAT equals 12:00 PM AST. The conversion table above shows every hour of the day mapped between these two time zones.

Scheduling Across WAT and AST

For professionals scheduling meetings between WAT and AST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 5 hours difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.

Daylight Saving Time Considerations

WAT does not observe Daylight Saving Time, maintaining UTC+1 year-round. AST observes DST, switching to ADT (UTC-3). During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.

Frequently Asked Questions

What is the time difference between WAT and AST?
Atlantic Standard Time (AST) is 5 hours behind West Africa Time (WAT). When it is 12:00 PM noon in WAT, it is 7:00 AM in AST.
How do I convert WAT to AST?
To convert WAT to AST, subtract 5 hours from the WAT time. For example, 9:00 AM WAT is 4:00 AM AST. Use the conversion table above for a quick reference of all 24 hours.
Does WAT or AST observe Daylight Saving Time?
WAT does not observe Daylight Saving Time. AST observes DST, switching to ADT (UTC-3). During DST transitions, the time difference between these zones may change by 1 hour.
What is the best time to schedule a call between WAT and AST?
The best time to schedule a call between WAT and AST is during overlapping business hours. If you are in WAT, 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 AST.
Is WAT ahead or behind AST?
WAT (UTC+1) is 5 hours ahead of AST (UTC-4). WAT corresponds to the IANA time zone Africa/Lagos, while AST corresponds to America/Halifax.

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Time Zone Info