IST to CET Time Zone Converter — Time Difference Between Kolkata and Vienna
Drag the slider or click the time display to type a specific hour and instantly convert IST to CET. The time difference between Kolkata and Vienna is 4:30 hours — Vienna (CET) is behind Kolkata (IST) (UTC+5:30 vs UTC+1:00); for example, 9:00 AM IST = 4:30 AM CET; to convert, subtract 4:30 hours. Use this IST to CET time zone converter to check the live current time in both cities, browse the 24-hour IST to CET conversion table, plan international meetings, find the best overlap hours, and account for daylight saving time changes automatically.
IST
India Standard Time
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CET
Central European Time
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IST to CET Time Zone Difference — Hour-by-Hour Conversion Table
Scan each row to convert any IST time to CET and find the exact time difference between Kolkata and Vienna hour by hour. Amber-highlighted rows mark standard daytime business hours, making it easy to spot overlapping work windows for scheduling international meetings or remote team calls. Tap the arrows to jump between days, click "Today" to reset, and all daylight saving time transitions are handled automatically.
| IST (Kolkata) | CET (Vienna) |
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What Time Is It Now in Kolkata?
Live current local time in Kolkata, India — IST (UTC+5:30). Updates every second.
What Time Is It Now in Vienna?
Live current local time in Vienna, Austria — CET (UTC+1:00). Updates every second.
IST to CET Quick Reference
Common business hours in Kolkata converted to Vienna local time — handy for scheduling video calls, client meetings, and international conference calls.
IST & CET Meeting Planner — Best Overlapping Hours
Use the color-coded conversion table above to find overlapping business hours between Kolkata and Vienna. Amber rows mark standard daytime work hours (8 AM–6 PM local time) — pick a slot that falls in amber on both sides for a meeting time that works for everyone. Since IST (UTC+5:30) is 4:30 hours behind CET (UTC+1:00), this time zone meeting planner is ideal for scheduling international calls, remote team standups, and cross-border project syncs.
Why Trust This Kolkata to Vienna Time Zone Converter?
ConvertFlash uses the IANA Time Zone Database — the same authoritative source that powers your phone, browser, and every major operating system — so every Kolkata to Vienna conversion handles daylight saving time transitions, half-hour UTC offsets, and historical time zone changes automatically. The live world clock updates every second, and the hour-by-hour conversion table regenerates correctly for any past or future date you select, making it reliable for both real-time checks and advance international scheduling.
IST — India Standard Time
Kolkata, India — UTC offset UTC+5:30
- Abbreviation
- IST
- UTC Offset
- UTC+5:30
- City
- Kolkata
- Country
- India
CET — Central European Time
Vienna, Austria — UTC offset UTC+1:00
- Abbreviation
- CET
- UTC Offset
- UTC+1:00
- City
- Vienna
- Country
- Austria