Chicago to Kolkata Time Comparison
Plan meetings and travel between Chicago and Kolkata with live local times. All conversions use the IANA time-zone database and update automatically when either city changes for daylight saving time.
24-Hour Comparison Timeline
Green = working hours · Yellow = early/late · Red = night
24-hour reference table
| Chicago (Chicago) | Kolkata (Kolkata) |
|---|---|
| 12:00 AM | 10:30 AM |
| 01:00 AM | 11:30 AM |
| 02:00 AM | 12:30 PM |
| 03:00 AM | 01:30 PM |
| 04:00 AM | 02:30 PM |
| 05:00 AM | 03:30 PM |
| 06:00 AM | 04:30 PM |
| 07:00 AM | 05:30 PM |
| 08:00 AM | 06:30 PM |
| 09:00 AM | 07:30 PM |
| 10:00 AM | 08:30 PM |
| 11:00 AM | 09:30 PM |
| 12:00 PM | 10:30 PM |
| 01:00 PM | 11:30 PM |
| 02:00 PM | 12:30 AM(Sat, Oct 3) |
| 03:00 PM | 01:30 AM(Sat, Oct 3) |
| 04:00 PM | 02:30 AM(Sat, Oct 3) |
| 05:00 PM | 03:30 AM(Sat, Oct 3) |
| 06:00 PM | 04:30 AM(Sat, Oct 3) |
| 07:00 PM | 05:30 AM(Sat, Oct 3) |
| 08:00 PM | 06:30 AM(Sat, Oct 3) |
| 09:00 PM | 07:30 AM(Sat, Oct 3) |
| 10:00 PM | 08:30 AM(Sat, Oct 3) |
| 11:00 PM | 09:30 AM(Sat, Oct 3) |
Daylight saving time
Chicago observes daylight saving time; Kolkata does not. Expect a one-hour swing when Chicago starts or ends DST.
Working-hours overlap
Standard 9-to-5 hours in Chicago and Kolkata do not overlap. Use an early or late slot on one side.
Frequently asked questions
What is the time difference between Chicago and Kolkata?+
Kolkata (UTC+05:30) is currently 10 hours 30 minutes ahead of Chicago (UTC-05:00). This page recalculates the offset live from the IANA time-zone database, including any daylight-saving transitions.
Does Chicago or Kolkata observe daylight saving time?+
Chicago observes daylight saving time; Kolkata does not, so the gap changes when Chicago springs forward or falls back. Times on this page always reflect the current local rules.
What are the best meeting hours between Chicago and Kolkata?+
Standard 9–5 working hours in Chicago and Kolkata do not overlap. Pick an early or late slot for one side, or use the 24-hour table above to find a time that works.
How do I quickly convert Chicago to Kolkata?+
Use the live clocks and 24-hour reference table above. Pick any hour on the Chicago row to see the matching Kolkata time. The Event Planner also lets you pick a specific date and share it with attendees.