IRST to CST Time Converter
Iran Standard Time to Central Standard Time — live converter with a full hour-by-hour table
Right now it is 15:55 in IRST (UTC+03:30) and 06:25 in CST (UTC-06:00). CST is 9 hours 30 minutes behind IRST (−9h 30m).
Time now in IRST
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Time now in CST
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IRST to CST conversion table
| IRST | CST | IRST | CST |
|---|---|---|---|
| 00:00 | 14:30 | 12:00 | 02:30 |
| 01:00 | 15:30 | 13:00 | 03:30 |
| 02:00 | 16:30 | 14:00 | 04:30 |
| 03:00 | 17:30 | 15:00 | 05:30 |
| 04:00 | 18:30 | 16:00 | 06:30 |
| 05:00 | 19:30 | 17:00 | 07:30 |
| 06:00 | 20:30 | 18:00 | 08:30 |
| 07:00 | 21:30 | 19:00 | 09:30 |
| 08:00 | 22:30 | 20:00 | 10:30 |
| 09:00 | 23:30 | 21:00 | 11:30 |
| 10:00 | 00:30 | 22:00 | 12:30 |
| 11:00 | 01:30 | 23:00 | 13:30 |
Best time to call or meet
Standard business hours, expressed in both zones:
- 9:00–17:00 in IRST is 23:30 to 07:30 in CST
- 9:00–17:00 in CST is 18:30 to 02:30 in IRST
FAQ
What is the time difference between IRST and CST?
CST is 9 hours 30 minutes behind IRST. IRST is UTC+03:30 and CST is UTC-06:00.
What is the best time to call from IRST to CST?
9:00 to 17:00 in IRST corresponds to 23:30 to 07:30 in CST. Schedule calls inside the business-hours overlap of both zones.
More about these zones
- Iran Standard TimeUTC+03:30
- Central Standard TimeUTC-06:00
- Convert CST to IRST insteadreverse direction
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