Convert Atlantic Time to Casey Time
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AST · UTC−4 → CAST · UTC+8
AST is 12 hours behind CAST
Today Halifax is on ADT (UTC−3) and Casey on AWST (UTC+8), so right now Halifax is 11 hours behind Casey.
Halifax · ADT
Wednesday, 7 October 2026
Casey · AWST
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.
No overlap in standard working hours. Closest workable window: 09:00–12:00 in Halifax, which is 20:00–23:00 in Casey.
Working (09–18) Awake, off the clock Asleep (23–07)
Pick a time and share it
08:24 Wed 7 Oct Halifax = 19:24 Wed 7 Oct Casey
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. | Casey (CAST) | |
|---|---|---|
| 00:00 | 11:00 | |
| 01:00 | 12:00 | |
| 02:00 | 13:00 | |
| 03:00 | 14:00 | |
| 04:00 | 15:00 | |
| 05:00 | 16:00 | |
| 06:00 | 17:00 | |
| 07:00 | 18:00 | |
| 08:00 | 19:00 | Now |
| 09:00 | 20:00 | |
| 10:00 | 21:00 | |
| 11:00 | 22:00 | |
| 12:00 | 23:00 | |
| 13:00 | 00:00next day | |
| 14:00 | 01:00next day | |
| 15:00 | 02:00next day | |
| 16:00 | 03:00next day | |
| 17:00 | 04:00next day | |
| 18:00 | 05:00next day | |
| 19:00 | 06:00next day | |
| 20:00 | 07:00next day | |
| 21:00 | 08:00next day | |
| 22:00 | 09:00next day | |
| 23:00 | 10:00next day |
About this conversion
AST here means Atlantic Time, represented by Halifax (America/Halifax), currently UTC−3. CAST means Casey Time, represented by Casey (Antarctica/Casey), currently UTC+8.
AST is used by 32 zones, including Canada. If you meant a different one, see every meaning of AST.
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 20:00 CAST
- 12:00 AST is 23:00 CAST
- 15:00 AST is 02:00 CAST
- 18:00 AST is 05:00 CAST
Related conversions
- Atlantic Time to Central Africa TimeAST → CAT
- Atlantic Time to Central European TimeAST → CET
- Atlantic Time to Cape Verde TimeAST → CVT
- Atlantic Time to Hovd TimeAST → HOVT
- Australian Western Time to Casey TimeAWST → CAST
- Azerbaijan Time to Casey TimeAZT → CAST
- Casey Time to Central European TimeCAST → CET
- Casey Time to Gilbert Islands TimeCAST → GILT
- Atlantic Time to India TimeAST → IST
- Casey Time to India TimeCAST → IST
- Time in Halifaxnow, DST, offset
- Time in Caseynow, DST, offset