Convert Atlantic Time to West Africa Time
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AST · UTC−4 → WAT · UTC+1
AST is 5 hours behind WAT
Today Halifax is on ADT (UTC−3) and Lagos on WAT (UTC+1), so right now Halifax is 4 hours behind Lagos.
Halifax · ADT
Wednesday, 7 October 2026
Lagos · WAT
Wednesday, 7 October 2026
When are both sides at work?Each column is one hour of the day in the first city; the second row shows the same moment in the other city. Gold means office hours (09:00–18:00), dusk means awake but off work, night means asleep (23:00–07:00). Columns where both rows are gold are good meeting times.
Shared working hours: 09:00–14:00 in Halifax is 13:00–18:00 in Lagos.
Working (09–18) Awake, off the clock Asleep (23–07)
Pick a time and share it
08:25 Wed 7 Oct Halifax = 12:25 Wed 7 Oct Lagos
Hour-by-hour conversion
| Halifax (AST)Every hour of today in the first city, with the matching time in the second. “Next day” means the calendar date is already tomorrow there. The highlighted row is right now. | Lagos (WAT) | |
|---|---|---|
| 00:00 | 04:00 | |
| 01:00 | 05:00 | |
| 02:00 | 06:00 | |
| 03:00 | 07:00 | |
| 04:00 | 08:00 | |
| 05:00 | 09:00 | |
| 06:00 | 10:00 | |
| 07:00 | 11:00 | |
| 08:00 | 12:00 | Now |
| 09:00 | 13:00 | Both at work |
| 10:00 | 14:00 | Both at work |
| 11:00 | 15:00 | Both at work |
| 12:00 | 16:00 | Both at work |
| 13:00 | 17:00 | Both at work |
| 14:00 | 18:00 | |
| 15:00 | 19:00 | |
| 16:00 | 20:00 | |
| 17:00 | 21:00 | |
| 18:00 | 22:00 | |
| 19:00 | 23:00 | |
| 20:00 | 00:00next day | |
| 21:00 | 01:00next day | |
| 22:00 | 02:00next day | |
| 23:00 | 03:00next day |
About this conversion
AST here means Atlantic Time, represented by Halifax (America/Halifax), currently UTC−3. WAT means West Africa Time, represented by Lagos (Africa/Lagos), currently UTC+1.
AST is used by 32 zones, including Canada. If you meant a different one, see every meaning of AST.
WAT is used by 11 zones, including Nigeria. See every meaning of WAT.
Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Halifax; day boundaries are marked where the date differs.
Quick answers
- 09:00 AST is 13:00 WAT
- 12:00 AST is 16:00 WAT
- 15:00 AST is 19:00 WAT
- 18:00 AST is 22:00 WAT
Related conversions
- Atlantic Time to Western European TimeAST → WET
- Atlantic Time to West Greenland TimeAST → WGT
- Australian Central Time to Atlantic TimeACST → AST
- Atlantic Time to Chile TimeAST → CLT
- Australian Western Time to West Africa TimeAWST → WAT
- Azerbaijan Time to West Africa TimeAZT → WAT
- Cocos Islands Time to West Africa TimeCCT → WAT
- French Guiana Time to West Africa TimeGFT → WAT
- Atlantic Time to India TimeAST → IST
- India Time to West Africa TimeIST → WAT
- Time in Halifaxnow, DST, offset
- Time in Lagosnow, DST, offset