CST ↔ IST Time Converter

Convert CST to IST instantly. Central Standard Time is UTC-6 / UTC-5 (CDT) and India Standard Time is UTC+5:30 — a 11h 30m ahead difference. Enter any time in either field — both are fully editable. Use the ⇄ button to swap directions.

🕐 Live Current Times

CST
--:--:--
--
Central Standard Time
11h 30m ahead
⇄ IST→CST
IST
--:--:--
--
India Standard Time

⚡ Bidirectional Time Converter

CST (UTC-6 / UTC-5 (CDT)) → IST (UTC+5:30) · Difference: 11h 30m ahead (auto-adjusts for DST)

ℹ️ Timezone Details

CST Offset
UTC-6 / UTC-5 (CDT)
IST Offset
UTC+5:30
Difference
11h 30m ahead
CST Full Name
Central Standard Time
IST Full Name
India Standard Time
Vice Versa
IST → CST ↗

🤝 Best Meeting Hours Between CST and IST

Because IST is 11h 30m ahead CST, use this table to plan calls that fall in reasonable working hours for both sides.

CSTISTSuitability
7:00 AM6:00 PMGood — early morning start
8:00 AM7:00 PMBest overlap
9:00 AM8:00 PMBest overlap
10:00 AM9:00 PMBest overlap
11:00 AM10:00 PMGood — late afternoon

🏙️ Cities Covered by Each Time Zone

CST Cities
Chicago, Dallas, Houston, Minneapolis, Kansas City, New Orleans
IST Cities
Mumbai, Delhi, Bangalore, Hyderabad, Chennai, Kolkata, Pune

Note: Some timezones observe Daylight Saving Time, so the offset may change seasonally. The live clocks and converter on this page adjust automatically.

📋 Full 24-Hour Conversion Table — CST to IST

CST (12h)CST (24h)IST (12h)IST (24h)DayType
12:00 AM00:0011:30 AM11:30—Night
1:00 AM01:0012:30 PM12:30—Night
2:00 AM02:001:30 PM13:30—Night
3:00 AM03:002:30 PM14:30—Night
4:00 AM04:003:30 PM15:30—Night
5:00 AM05:004:30 PM16:30—Night
6:00 AM06:005:30 PM17:30—
7:00 AM07:006:30 PM18:30—
8:00 AM08:007:30 PM19:30—
9:00 AM09:008:30 PM20:30—Business
10:00 AM10:009:30 PM21:30—Business
11:00 AM11:0010:30 PM22:30—Business
12:00 PM12:0011:30 PM23:30—Business
1:00 PM13:0012:30 AM00:30+1 DayBusiness
2:00 PM14:001:30 AM01:30+1 DayBusiness
3:00 PM15:002:30 AM02:30+1 DayBusiness
4:00 PM16:003:30 AM03:30+1 DayBusiness
5:00 PM17:004:30 AM04:30+1 DayBusiness
6:00 PM18:005:30 AM05:30+1 Day
7:00 PM19:006:30 AM06:30+1 Day
8:00 PM20:007:30 AM07:30+1 Day
9:00 PM21:008:30 AM08:30+1 Day
10:00 PM22:009:30 AM09:30+1 DayNight
11:00 PM23:0010:30 AM10:30+1 DayNight

Note: this table uses a fixed offset. During Daylight Saving Time the difference may change — use the live converter above which adjusts automatically.

🔗 Related Converters

💡 How to Convert CST to IST

1
Find the offset — Central Standard Time is UTC-6 / UTC-5 (CDT) and India Standard Time is UTC+5:30. The difference between them is 11h 30m ahead.
2
Use either input field — Type a time in the CST field to get the IST equivalent, or type in the IST field to get the CST time. Both fields are editable.
3
Swap directions — Click ⇄ to instantly swap the conversion direction, or visit the IST to CST page.
4
Check the table — The 24-hour reference table shows every hour converted, with working hours marked green and late night/early morning marked orange.
5
Watch for day changes — Some times cross midnight, so a "+1 Day" or "-1 Day" note appears to show the date is different in the converted timezone.

❓ FAQ — CST to IST

What is the time difference between CST and IST?

India Standard Time (IST) is 11h 30m ahead Central Standard Time (CST).

How do I convert CST to IST?

Use the converter above — type any time in the CST field and the IST result appears instantly. You can also refer to the 24-hour table on this page.

Is IST ahead or behind CST?

India Standard Time (IST) is 11h 30m ahead Central Standard Time (CST).

How do I convert IST back to CST?

Simply type in the IST field in the bidirectional converter above — it works in both directions. Or visit the dedicated IST to CST converter page.

What is the best overlap time for meetings between CST and IST?

Use the meeting hours table above to find windows where both timezones fall within reasonable working hours.