Convert Atlantic Time to Central Time
Looking to build a web app, a mobile app or a website for your shop or business, or want more leads? Boffin Coders, who build timezones.in, can help. Talk to us → (opens in a new tab)
AST · UTC−4 → CST · UTC−6
AST is 2 hours ahead of CST
Halifax · ADT
Wednesday, 7 October 2026
Chicago · CDT
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: 11:00–18:00 in Halifax is 09:00–16:00 in Chicago.
Working (09–18) Awake, off the clock Asleep (23–07)
Pick a time and share it
08:24 Wed 7 Oct Halifax = 06:24 Wed 7 Oct Chicago
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. | Chicago (CST) | |
|---|---|---|
| 00:00 | 22:00prev. day | |
| 01:00 | 23:00prev. day | |
| 02:00 | 00:00 | |
| 03:00 | 01:00 | |
| 04:00 | 02:00 | |
| 05:00 | 03:00 | |
| 06:00 | 04:00 | |
| 07:00 | 05:00 | |
| 08:00 | 06:00 | Now |
| 09:00 | 07:00 | |
| 10:00 | 08:00 | |
| 11:00 | 09:00 | Both at work |
| 12:00 | 10:00 | Both at work |
| 13:00 | 11:00 | Both at work |
| 14:00 | 12:00 | Both at work |
| 15:00 | 13:00 | Both at work |
| 16:00 | 14:00 | Both at work |
| 17:00 | 15:00 | Both at work |
| 18:00 | 16:00 | |
| 19:00 | 17:00 | |
| 20:00 | 18:00 | |
| 21:00 | 19:00 | |
| 22:00 | 20:00 | |
| 23:00 | 21:00 |
About this conversion
AST here means Atlantic Time, represented by Halifax (America/Halifax), currently UTC−3. CST means Central Time, represented by Chicago (America/Chicago), currently UTC−5.
AST is used by 32 zones, including Canada. If you meant a different one, see every meaning of AST.
CST is used by 15 zones, including United States. See every meaning of CST.
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 07:00 CST
- 12:00 AST is 10:00 CST
- 15:00 AST is 13:00 CST
- 18:00 AST is 16:00 CST
Related conversions
- Atlantic Time to Cape Verde TimeAST → CVT
- Atlantic Time to Davis TimeAST → DAVT
- Atlantic Time to Fiji TimeAST → FJT
- Atlantic Time to Lord Howe TimeAST → LHST
- Australian Western Time to Central TimeAWST → CST
- Azerbaijan Time to Central TimeAZT → CST
- Cocos Islands Time to Central TimeCCT → CST
- Central Time to Gilbert Islands TimeCST → GILT
- Atlantic Time to India TimeAST → IST
- Central Time to India TimeCST → IST
- Time in Halifaxnow, DST, offset
- Time in Chicagonow, DST, offset