MeanwhileAST to CST converter
Atlantic Time (Halifax) to Central Time (Chicago, Dallas, Houston, Winnipeg).
CST is 2 h behind AST.
9:00 AM AST = 7:00 AM CST same day
Best time to meet
The best time to meet is between 11:00 AM and 5:00 PM AST, which is 9:00 AM to 3:00 PM CST. Both sides are then inside 9 AM to 5 PM.
AST to CST time table
For 30 Oct 2026. Green rows: both sides between 9 AM and 5 PM.
| AST | CST |
|---|---|
| 12:00 AM AST | 10:00 PM CST previous day |
| 1:00 AM AST | 11:00 PM CST previous day |
| 2:00 AM AST | 12:00 AM CST |
| 3:00 AM AST | 1:00 AM CST |
| 4:00 AM AST | 2:00 AM CST |
| 5:00 AM AST | 3:00 AM CST |
| 6:00 AM AST | 4:00 AM CST |
| 7:00 AM AST | 5:00 AM CST |
| 8:00 AM AST | 6:00 AM CST |
| 9:00 AM AST | 7:00 AM CST |
| 10:00 AM AST | 8:00 AM CST |
| 11:00 AM AST | 9:00 AM CST |
| 12:00 PM AST | 10:00 AM CST |
| 1:00 PM AST | 11:00 AM CST |
| 2:00 PM AST | 12:00 PM CST |
| 3:00 PM AST | 1:00 PM CST |
| 4:00 PM AST | 2:00 PM CST |
| 5:00 PM AST | 3:00 PM CST |
| 6:00 PM AST | 4:00 PM CST |
| 7:00 PM AST | 5:00 PM CST |
| 8:00 PM AST | 6:00 PM CST |
| 9:00 PM AST | 7:00 PM CST |
| 10:00 PM AST | 8:00 PM CST |
| 11:00 PM AST | 9:00 PM CST |
Quick answers
- 9:00 AM AST = 7:00 AM CST
- 12:00 PM AST = 10:00 AM CST
- 3:00 PM AST = 1:00 PM CST
- 5:00 PM AST = 3:00 PM CST
- 9:00 AM CST = 11:00 AM AST
- 12:00 PM CST = 2:00 PM AST
- 5:00 PM CST = 7:00 PM AST
Does the gap change during the year?
Yes, because of daylight saving. Until 1 Nov 2026: CST is 2 h behind AST. From 1 Nov 2026 to 1 Nov 2026: CST is 1 h behind AST. From 1 Nov 2026 to 14 Mar 2027: CST is 2 h behind AST. From 14 Mar 2027 to 14 Mar 2027: CST is 3 h behind AST. From 14 Mar 2027 to 7 Nov 2027: CST is 2 h behind AST.
AST next changes its clocks on 1 Nov 2026 (back 1 h, to UTC−4), then on 14 Mar 2027 (forward 1 h, to UTC−3). CST next changes its clocks on 1 Nov 2026 (back 1 h, to UTC−6), then on 14 Mar 2027 (forward 1 h, to UTC−5).
About AST and CST
AST here means Atlantic Time, the clock in Halifax. Right now it is UTC−3. Strictly, AST is the winter name; in summer these places use ADT. This page follows their real clock all year.
CST here means Central Time, the clock in Chicago, Dallas, Houston, Winnipeg. Right now it is UTC−5. Strictly, CST is the winter name; in summer these places use CDT. This page follows their real clock all year.
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Coming soonMore conversions
AST to EST AST to MST AST to PST AST to AKST AST to HST AST to NST AST to BRT AST to ART AST to COT AST to CLT AST to UTC AST to GMT AST to BST AST to CET AST to EET AST to MSK AST to TRT AST to SAST AST to WAT AST to EAT AST to GST AST to IRST AST to AFT AST to PKT AST to IST AST to NPT AST to BDT AST to ICT AST to WIB AST to SGT AST to HKT AST to PHT AST to KST AST to JST AST to AWST AST to ACST AST to AEST AST to NZST
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