Convert CT to IST
Central Time (CT) to India Standard Time (IST)
Tech companies in Chicago, Houston, and Dallas with development teams in India search this constantly. The 11.5-hour gap during Central Standard Time (10.5 hours during CDT) makes overlap windows narrow, so knowing the exact meeting sweet spot matters.
When it's 12:00 PM CT, it's 10:30 PM IST
Interactive Converter
Pick any time and date to convert between CT and IST.
CT to IST Conversion Table
Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.
| CT | IST |
|---|---|
| 12:00 AM | 10:30 AM |
| 1:00 AM | 11:30 AM |
| 2:00 AM | 12:30 PM |
| 3:00 AM | 1:30 PM |
| 4:00 AM | 2:30 PM |
| 5:00 AM | 3:30 PM |
| 6:00 AM | 4:30 PM |
| 7:00 AM | 5:30 PM |
| 8:00 AM | 6:30 PM |
| 9:00 AM | 7:30 PM |
| 10:00 AM | 8:30 PM |
| 11:00 AM | 9:30 PM |
| 12:00 PM | 10:30 PM |
| 1:00 PM | 11:30 PM |
| 2:00 PM | 12:30 AM +1 day |
| 3:00 PM | 1:30 AM +1 day |
| 4:00 PM | 2:30 AM +1 day |
| 5:00 PM | 3:30 AM +1 day |
| 6:00 PM | 4:30 AM +1 day |
| 7:00 PM | 5:30 AM +1 day |
| 8:00 PM | 6:30 AM +1 day |
| 9:00 PM | 7:30 AM +1 day |
| 10:00 PM | 8:30 AM +1 day |
| 11:00 PM | 9:30 AM +1 day |
Best Meeting Window
Top meeting times for teams in CT and IST (9 AM -- 6 PM work hours, 1-hour meeting).
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for CT.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for CT.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for IST.
Scheduling Tips
- Schedule meetings between 8:00-10:00 AM CST / 7:30-9:30 PM IST for the best overlap. Earlier US times push India past dinner.
- During CDT (summer), you gain an extra hour of overlap. Use 7:00-10:00 AM CDT / 5:30-8:30 PM IST.
- For async handoffs, post updates by 5:00 PM CST so the India team sees them at 4:30 AM IST when their day starts.
Time Difference & DST
IST is 10 hours 30 minutes ahead of CT. CT is at UTC-5 and IST is at UTC+5:30.
Upcoming DST Transitions:
The conversion table above reflects the current DST state at build time. Use the interactive converter for live, date-specific conversions.
Major Cities
Central Time (CT)
- Chicago
- Dallas
- Houston
India Standard Time (IST)
- Mumbai
- Delhi
- Bangalore
Frequently Asked Questions
What is the time difference between CST and IST?
Does the CST to IST time difference change with daylight saving?
What is the best time for a meeting between Chicago and India?
Related Guides
Find the ideal overlap window for US–India calls. Covers EST, CST, MST, and PST to IST with work-hour recommendations.
How US Daylight Saving Time Affects International Team CallsUnderstand how US spring-forward and fall-back shifts change meeting times with Europe, India, and Asia-Pacific teams.
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