Companies headquartered in Chicago, Dallas, and Minneapolis outsource heavily to India. Insurance, healthcare IT, and logistics firms in the Central time zone rely on development teams in Bangalore, Hyderabad, and Pune. The CST–IST conversion is part of their daily routine.
India Standard Time is UTC+5:30 with no daylight saving time. Central Standard Time is UTC−6, shifting to CDT (UTC−5) in summer. The standard gap is 11 hours 30 minutes: 9 AM in Chicago is 8:30 PM in India. During CDT the gap narrows to 10 hours 30 minutes.
The overlap window is slightly better than from the East Coast. A 7:30–9:30 AM Central meeting hits 7–9 PM IST during winter, or 6–8 PM IST during summer — both workable for Indian teams willing to stay a bit late.