Convert AST to CST Time
Free online converter with current times, time difference, and conversion table between AST and CST time zones.
Current time in AST: Loading...
Current time in CST: Loading...
Time difference: -2 hours
AST to CST Conversion Table
This table shows common AST times converted to CST time:
About AST and CST Time Zones
AST Time Zone
Full Name: Atlantic Standard Time
UTC Offset: UTC-4
Current Time: Loading...
Standard time in the Atlantic Time Zone.
Used in: Canada, Bermuda, Barbados, Dominican Republic
CST Time Zone
Full Name: Central Standard Time
UTC Offset: UTC-6
Current Time: Loading...
Standard time in the Central Time Zone of North America.
Used in: USA, Canada, Mexico, Belize, Costa Rica, El Salvador
How to Convert AST to CST
Enter AST Time
Enter the AST time you want to convert using the time picker or by typing directly in 24-hour format.
Click Convert
Click the "Convert Time" button to perform the conversion from AST to CST.
View Result
The equivalent CST time will be displayed, along with the time difference between the two zones.
Use Conversion Table
For quick reference, you can also use the conversion table below that shows common AST times converted to CST.
Common Uses for AST to CST Conversion
International Business
Schedule meetings and calls between locations in Canada and USA time zones.
Travel Planning
Calculate arrival times and plan activities when traveling between Canada and USA.
Event Scheduling
Convert event times for international broadcasts, webinars, or sports events between these regions.
Keeping in Touch
Find the best times to call friends, family, or colleagues across these time zones.
Frequently Asked Questions
The time difference between AST and CST is -2 hours. This means that when it's noon (12:00 PM) in AST, it's 10:00 AM in CST.
To convert AST to CST time, subtract 2 hours from the AST time. You can use our converter at the top of this page for instant and accurate conversions.
AST observes DST. CST observes DST.
Business hours largely overlap.
Our converter uses standard time zone offsets. For the most accurate conversions during DST transition periods, please verify the exact dates when DST begins or ends in the relevant regions, as these can vary by year and location.