When it is 12:00 PM in Ratchaburi, it is 12:00 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.
Ratchaburi is 12 hours ahead of Chicago.
🕐 Subtract 12 hours from Ratchaburi time to get Chicago time.
Ratchaburi uses 7 hours ahead of Universal Time (UTC+7) and Chicago uses 5 hours behind Universal Time (UTC-5).
| Ratchaburi Time | Chicago Time | |
|---|---|---|
| 12 AM Ratchaburi Time | ↔ | ☼ 12 PM Chicago Time |
| 1 AM Ratchaburi Time | ↔ | ☼ 1 PM Chicago Time |
| 2 AM Ratchaburi Time | ↔ | ☼ 2 PM Chicago Time |
| 3 AM Ratchaburi Time | ↔ | ☼ 3 PM Chicago Time |
| 4 AM Ratchaburi Time | ↔ | ☼ 4 PM Chicago Time |
| ☼ 5 AM Ratchaburi Time | ↔ | ☼ 5 PM Chicago Time |
| ☼ 6 AM Ratchaburi Time | ↔ | ☼ 6 PM Chicago Time |
| ☼ 7 AM Ratchaburi Time | ↔ | ☼ 7 PM Chicago Time |
| ☼ 8 AM Ratchaburi Time | ↔ | ☼ 8 PM Chicago Time |
| ☼ 9 AM Ratchaburi Time | ↔ | 9 PM Chicago Time |
| ☼ 10 AM Ratchaburi Time | ↔ | 10 PM Chicago Time |
| ☼ 11 AM Ratchaburi Time | ↔ | 11 PM Chicago Time |
| Ratchaburi Time | Chicago Time | |
|---|---|---|
| ☼ 12 PM Ratchaburi Time | ↔ | 12 AM Chicago Time |
| ☼ 1 PM Ratchaburi Time | ↔ | 1 AM Chicago Time |
| ☼ 2 PM Ratchaburi Time | ↔ | 2 AM Chicago Time |
| ☼ 3 PM Ratchaburi Time | ↔ | 3 AM Chicago Time |
| ☼ 4 PM Ratchaburi Time | ↔ | 4 AM Chicago Time |
| ☼ 5 PM Ratchaburi Time | ↔ | ☼ 5 AM Chicago Time |
| ☼ 6 PM Ratchaburi Time | ↔ | ☼ 6 AM Chicago Time |
| 7 PM Ratchaburi Time | ↔ | ☼ 7 AM Chicago Time |
| 8 PM Ratchaburi Time | ↔ | ☼ 8 AM Chicago Time |
| 9 PM Ratchaburi Time | ↔ | ☼ 9 AM Chicago Time |
| 10 PM Ratchaburi Time | ↔ | ☼ 10 AM Chicago Time |
| 11 PM Ratchaburi Time | ↔ | ☼ 11 AM Chicago Time |
Ratchaburi is 12 hours ahead of Chicago.
Ratchaburi is ahead of Chicago by 12 hours.
It is 9:00 PM the previous day in Chicago.