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Convert CST to IRST Time - Free Time Zone Converter

Convert Central Standard Time (CST) to Iran Standard Time (IRST, UTC+3.5) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for CST to IRST coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.

🌍
CST
Central Standard Time
Current Time
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🕐
IRST
Iran Standard Time
Current Time
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Converted Time
Select a time to convert
Time Difference
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Your Local Time
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UTC Time
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CST to IRST Time Zone Difference

Iran Standard Time is 9 hours and 30 minutes ahead of Central Standard Time

Always up-to-date and accurate

24-Hour CST to IRST Conversion Chart

Complete hourly conversion for Central Standard Time to Iran Standard Time

12:00 AM
CST
9:30 AM
IRST
00:00 09:30
1:00 AM
CST
10:30 AM
IRST
01:00 10:30
2:00 AM
CST
11:30 AM
IRST
02:00 11:30
3:00 AM
CST
12:30 PM
IRST
03:00 12:30
4:00 AM
CST
1:30 PM
IRST
04:00 13:30
5:00 AM
CST
2:30 PM
IRST
05:00 14:30
6:00 AM
CST
3:30 PM
IRST
06:00 15:30
7:00 AM
CST
4:30 PM
IRST
07:00 16:30
8:00 AM
CST
5:30 PM
IRST
08:00 17:30
9:00 AM
CST
6:30 PM
IRST
09:00 18:30
10:00 AM
CST
7:30 PM
IRST
10:00 19:30
11:00 AM
CST
8:30 PM
IRST
11:00 20:30
12:00 PM
CST
9:30 PM
IRST
12:00 21:30
1:00 PM
CST
10:30 PM
IRST
13:00 22:30
2:00 PM
CST
11:30 PM
IRST
14:00 23:30
3:00 PM
CST
12:30 AM
IRST
(next day)
15:00 00:30
4:00 PM
CST
1:30 AM
IRST
(next day)
16:00 01:30
5:00 PM
CST
2:30 AM
IRST
(next day)
17:00 02:30
6:00 PM
CST
3:30 AM
IRST
(next day)
18:00 03:30
7:00 PM
CST
4:30 AM
IRST
(next day)
19:00 04:30
8:00 PM
CST
5:30 AM
IRST
(next day)
20:00 05:30
9:00 PM
CST
6:30 AM
IRST
(next day)
21:00 06:30
10:00 PM
CST
7:30 AM
IRST
(next day)
22:00 07:30
11:00 PM
CST
8:30 AM
IRST
(next day)
23:00 08:30

Best Meeting Times between Central Standard Time and Iran Standard Time

Optimal hours for calls between CST and IRST

Compromise times recommended
7:00 AM CST → 4:30 PM IRST
Early Hours
8:00 AM CST → 5:30 PM IRST
Early Hours
6:00 PM CST → 3:30 AM (next day) IRST
Evening

Based on standard business hours (9:00 AM - 6:00 PM) in each time zone

Time Zone Details

Technical information for both time zones

CST

Central Standard Time

Source timezone

UTC Offset -6.0 hours
Abbreviation CST
Type Standard Time
Status Active
IRST

Iran Standard Time

Target timezone

UTC Offset 3.5 hours
Abbreviation IRST
Type Standard Time
Status Active

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