Delhi to Chicago Time

Live IST ↔ CST/CDT time converter · Delhi (NCT), India → USA DST applies

Delhi IST (Indian Standard Time) · UTC+05:30
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Delhi (NCT), India
11.5h behind IST
UTC-6
Chicago CST (Central Standard Time) / CDT (Central Daylight Time) · UTC-6
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USA
DST is active: Clocks spring forward on the 2nd Sunday in March and fall back on the 1st Sunday in November. The clock above reflects the current live offset.

24-Hour Overlap Timeline

❌ No business-hours overlap between Delhi and Chicago (9–18 local)

⚠ Chicago observes daylight saving time — offset shifts between UTC-6 and UTC-5 seasonally

01234567891011121314151617181920212223
UTC →
🇮🇳 Delhi UTC+5:30 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p 12a 1a 2a 3a 4a
🇺🇸 Chicago UTC-6 6p 7p 8p 9p 10p 11p 12a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p
Both working Working Off hours Sleeping Now

IST (Indian Standard Time) to Chicago (CST (Central Standard Time)/CDT (Central Daylight Time)) Conversion Table

All 24 hours of the day · based on standard time — CST (Central Standard Time). Live offset may differ during DST (CDT (Central Daylight Time)) — see clock above.
✅ Both in business hours 🔵 India office hours only 🟢 Chicago office hours only

IST (Indian Standard Time) — Delhi Chicago — CST/CDT Working hours
12:00 AM IST (Indian Standard Time) 12:30 PM CST 🟢 CST only −1 day
1:00 AM IST (Indian Standard Time) 1:30 PM CST 🟢 CST only −1 day
2:00 AM IST (Indian Standard Time) 2:30 PM CST 🟢 CST only −1 day
3:00 AM IST (Indian Standard Time) 3:30 PM CST 🟢 CST only −1 day
4:00 AM IST (Indian Standard Time) 4:30 PM CST 🟢 CST only −1 day
5:00 AM IST (Indian Standard Time) 5:30 PM CST −1 day
6:00 AM IST (Indian Standard Time) 6:30 PM CST −1 day
7:00 AM IST (Indian Standard Time) 7:30 PM CST −1 day
8:00 AM IST (Indian Standard Time) 8:30 PM CST −1 day
9:00 AM IST (Indian Standard Time) 9:30 PM CST 🔵 India only −1 day
10:00 AM IST (Indian Standard Time) 10:30 PM CST 🔵 India only −1 day
11:00 AM IST (Indian Standard Time) 11:30 PM CST 🔵 India only −1 day
12:00 PM IST (Indian Standard Time) 12:30 AM CST 🔵 India only
1:00 PM IST (Indian Standard Time) 1:30 AM CST 🔵 India only
2:00 PM IST (Indian Standard Time) 2:30 AM CST 🔵 India only
3:00 PM IST (Indian Standard Time) 3:30 AM CST 🔵 India only
4:00 PM IST (Indian Standard Time) 4:30 AM CST 🔵 India only
5:00 PM IST (Indian Standard Time) 5:30 AM CST 🔵 India only
6:00 PM IST (Indian Standard Time) 6:30 AM CST
7:00 PM IST (Indian Standard Time) 7:30 AM CST
8:00 PM IST (Indian Standard Time) 8:30 AM CST
9:00 PM IST (Indian Standard Time) 9:30 AM CST 🟢 CST only
10:00 PM IST (Indian Standard Time) 10:30 AM CST 🟢 CST only
11:00 PM IST (Indian Standard Time) 11:30 AM CST 🟢 CST only
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Best Time to Call Chicago from Delhi

No Direct Business Overlap

Delhi (9 AM–6 PM IST) and Chicago (9 AM–5 PM CST) do not have simultaneous business hours. The closest window for calls: 5:30–7:00 PM IST = early morning Chicago time — works for brief handoffs. Alternatively, use async tools (email, Slack) for daily coordination.

Morning India call
9:00 AM IST
9:30 PM CST
Midday call
12:00 PM IST
12:30 AM CST
End of India day
6:00 PM IST
6:30 AM CST

DST reminder: Chicago is 11h 30m behind IST in winter (CST) and 10h 30m behind in summer (CDT). The Chicago Mercantile Exchange (CME) opens at 8:30 AM CST, which is 8:00 PM IST in winter — Indian traders must adjust their schedules seasonally.

🇮🇳

Delhi, India

Time zone: IST (UTC+05:30) — fixed, no DST
State: Delhi (NCT)

Delhi (the National Capital Territory) is India's political capital and second-largest city. New Delhi houses the Parliament of India, all central government ministries, and the headquarters of India's largest public sector undertakings. The broader NCR region has a thriving tech corridor in Noida and Gurugram (Gurgaon), housing global MNC offices including Google, Microsoft, and Amazon India HQs.

  • India's political capital — home to Parliament, PM's office, all ministries
  • Gurugram–Noida tech corridor: India's largest MNC hub
  • Indira Gandhi International — India's busiest airport by passenger traffic
  • India's most air-connected city to international destinations
🇺🇸

Chicago, USA

Time zone: CST/CDT (UTC-6 / UTC-5 during DST)
Region: North America

Chicago is the USA's third largest city and a major hub for finance, healthcare, manufacturing, and the Indian-American community. The Chicago Mercantile Exchange (CME) is the world's largest derivatives exchange, directly impacting Indian commodities and currency markets. The suburb of Naperville/Schaumburg hosts one of the USA's densest Indian-American populations.

  • CME Group — impacts Indian commodity markets daily
  • Naperville has largest Indian-American community in Illinois
  • Midwest hub for Indian IT services industry
  • Direct flights from Delhi on American Airlines
India connections: Naperville–Schaumburg corridor has the highest Indian-American density in Illinois. CME trading impacts Indian commodity prices. Major Indian consulting firms (Accenture India, Infosys) have large Chicago offices. Direct flights from Delhi.

Frequently Asked Questions

What is the time difference between Delhi and Chicago?
During CST (standard time), Chicago is 11.5h behind IST. During CDT (daylight saving), the difference becomes 10.5h. The live clock on this page always shows the correct current time.
When do clocks change in Chicago and how does it affect IST?
Clocks spring forward on the 2nd Sunday in March and fall back on the 1st Sunday in November.

Chicago is 11h 30m behind IST in winter (CST) and 10h 30m behind in summer (CDT). The Chicago Mercantile Exchange (CME) opens at 8:30 AM CST, which is 8:00 PM IST in winter — Indian traders must adjust their schedules seasonally.
What is 9 AM IST in Chicago?
9:00 AM IST (Delhi) = 9:30 PM CST (or 10:30 PM CDT during summer) in Chicago.
What is the best time to schedule a meeting between Delhi and Chicago?
There is no overlapping standard business hours window. The best compromise is 5:30–7 PM IST, which corresponds to early morning in Chicago. For regular team syncs, consider 6 AM CST / early evening IST. Note: optimal windows shift by 1 hour when Chicago changes clocks — update your recurring calendar invite each spring and autumn.
Does India observe daylight saving time (DST)?
No. India (IST, UTC+5:30) does not observe daylight saving time and has not done so since 1945. Indian Standard Time is fixed year-round. This means that when Chicago changes its clocks in spring or autumn, the gap between Delhi and Chicago changes — but Delhi stays fixed.
Why is India on a half-hour timezone (UTC+5:30)?
India's UTC+5:30 offset was established in 1905 as a compromise between the time zones of Bombay (UTC+4:52) and Calcutta (UTC+5:54) when India unified under British rule. Several countries use half-hour or quarter-hour offsets — including Nepal (UTC+5:45), Iran (UTC+3:30), and parts of Australia (UTC+9:30) — to better align solar noon with clock noon across their territory.