When it is 12:00 PM in IRST, it is 3:30 AM in Chicago.
📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.
IRST is 8 hours 30 minutes ahead of Chicago.
🕐 Subtract 8 hours 30 minutes from IRST time to get Chicago time.
IRST uses 3 hours 30 minutes ahead of Universal Time (UTC+3) and Chicago uses 5 hours behind Universal Time (UTC-5).
| IRST Time | Chicago Time | |
|---|---|---|
| 12 AM IRST Time | ↔ | 3 PM Chicago Time |
| 1 AM IRST Time | ↔ | 4 PM Chicago Time |
| 2 AM IRST Time | ↔ | 5 PM Chicago Time |
| 3 AM IRST Time | ↔ | 6 PM Chicago Time |
| 4 AM IRST Time | ↔ | 7 PM Chicago Time |
| 5 AM IRST Time | ↔ | 8 PM Chicago Time |
| 6 AM IRST Time | ↔ | 9 PM Chicago Time |
| 7 AM IRST Time | ↔ | 10 PM Chicago Time |
| 8 AM IRST Time | ↔ | 11 PM Chicago Time |
| 9 AM IRST Time | ↔ | 12 AM Chicago Time |
| 10 AM IRST Time | ↔ | 1 AM Chicago Time |
| 11 AM IRST Time | ↔ | 2 AM Chicago Time |
| IRST Time | Chicago Time | |
|---|---|---|
| 12 PM IRST Time | ↔ | 3 AM Chicago Time |
| 1 PM IRST Time | ↔ | 4 AM Chicago Time |
| 2 PM IRST Time | ↔ | 5 AM Chicago Time |
| 3 PM IRST Time | ↔ | 6 AM Chicago Time |
| 4 PM IRST Time | ↔ | 7 AM Chicago Time |
| 5 PM IRST Time | ↔ | 8 AM Chicago Time |
| 6 PM IRST Time | ↔ | 9 AM Chicago Time |
| 7 PM IRST Time | ↔ | 10 AM Chicago Time |
| 8 PM IRST Time | ↔ | 11 AM Chicago Time |
| 9 PM IRST Time | ↔ | 12 PM Chicago Time |
| 10 PM IRST Time | ↔ | 1 PM Chicago Time |
| 11 PM IRST Time | ↔ | 2 PM Chicago Time |
IRST is 8 hours 30 minutes ahead of Chicago.
IRST is ahead of Chicago by 8 hours 30 minutes.
It is 12:30 AM in Chicago.