Convert CST to IRST Time
Free online converter with current times, time difference, and conversion table between CST and IRST time zones.
Current time in CST: Loading...
Current time in IRST: Loading...
Time difference: +9.5 hours
CST to IRST Conversion Table
This table shows common CST times converted to IRST time:
About CST and IRST Time Zones
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
IRST Time Zone
Full Name: Iran Standard Time
UTC Offset: UTC+3.5
Current Time: Loading...
Standard time in Iran.
Used in: Iran
How to Convert CST to IRST
Enter CST Time
Enter the CST 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 CST to IRST.
View Result
The equivalent IRST 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 CST times converted to IRST.
Common Uses for CST to IRST Conversion
International Business
Schedule meetings and calls between locations in USA and Iran time zones.
Travel Planning
Calculate arrival times and plan activities when traveling between USA and Iran.
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 CST and IRST is +9.5 hours. This means that when it's noon (12:00 PM) in CST, it's 9:00 PM in IRST.
To convert CST to IRST time, add 9.5 hours to the CST time. You can use our converter at the top of this page for instant and accurate conversions.
CST observes DST. IRST 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.