Convert IRST to CST Time
Free online converter with current times, time difference, and conversion table between IRST and CST time zones.
Current time in IRST: Loading...
Current time in CST: Loading...
Time difference: -9.5 hours
IRST to CST Conversion Table
This table shows common IRST times converted to CST time:
About IRST and CST Time Zones
IRST Time Zone
Full Name: Iran Standard Time
UTC Offset: UTC+3.5
Current Time: Loading...
Standard time in Iran.
Used in: Iran
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 IRST to CST
Enter IRST Time
Enter the IRST 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 IRST 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 IRST times converted to CST.
Common Uses for IRST to CST Conversion
International Business
Schedule meetings and calls between locations in Iran and USA time zones.
Travel Planning
Calculate arrival times and plan activities when traveling between Iran 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 IRST and CST is -9.5 hours. This means that when it's noon (12:00 PM) in IRST, it's 2:00 AM in CST.
To convert IRST to CST time, subtract 9.5 hours from the IRST time. You can use our converter at the top of this page for instant and accurate conversions.
IRST observes DST. CST observes DST.
Minimal overlap in business hours.
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.