CET to IST Converter

CET is 4 hours 30 minutes behind IST. For example, 10:00 AM CET is 2:30 PM IST. When Central Europe observes CEST (UTC+2), the difference is 3 hours 30 minutes.

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CET to IST Hour Conversion Table

Find overlap hours between Paris and Kolkata.

Standard table note: The table below uses the fixed abbreviations in this page title: CET = UTC +1 and IST = UTC +5:30. The live clocks and converter use Europe/Paris and Asia/Kolkata, so they automatically reflect daylight saving time when either location changes clocks. In Paris and most Central European locations, CET (UTC +1) applies from the last Sunday in October to the last Sunday in March; from the last Sunday in March to the last Sunday in October, the live zone uses CEST (UTC +2). IST is a fixed UTC +5:30 offset for this page's conversion table.

Current CET --:--:-- ---
Current IST --:--:-- ---
Calculating time zone difference...
Source (CET)Target (IST)Availability
12:00 AM 4:30 AM Off-Hours
1:00 AM 5:30 AM Off-Hours
2:00 AM 6:30 AM Off-Hours
3:00 AM 7:30 AM Off-Hours
4:00 AM 8:30 AM Off-Hours
5:00 AM 9:30 AM Partial Overlap
6:00 AM 10:30 AM Partial Overlap
7:00 AM 11:30 AM Partial Overlap
8:00 AM 12:30 PM Partial Overlap
9:00 AM 1:30 PM Perfect Overlap
10:00 AM 2:30 PM Perfect Overlap
11:00 AM 3:30 PM Perfect Overlap
12:00 PM 4:30 PM Perfect Overlap
1:00 PM 5:30 PM Perfect Overlap
2:00 PM 6:30 PM Partial Overlap
3:00 PM 7:30 PM Partial Overlap
4:00 PM 8:30 PM Partial Overlap
5:00 PM 9:30 PM Partial Overlap
6:00 PM 10:30 PM Off-Hours
7:00 PM 11:30 PM Off-Hours
8:00 PM 12:30 AM (+1d) Off-Hours
9:00 PM 1:30 AM (+1d) Off-Hours
10:00 PM 2:30 AM (+1d) Off-Hours
11:00 PM 3:30 AM (+1d) Off-Hours

Common CET to IST Conversions

Quick reference table using fixed CET and IST offsets. Use the live converter above for the exact current city time when daylight saving is active.

9:00 AM CET equals 1:30 PM IST
12:00 PM CET equals 4:30 PM IST
3:00 PM CET equals 7:30 PM IST
6:00 PM CET equals 10:30 PM IST
9:00 PM CET equals 1:30 AM (+1d) IST

Popular Time Zone Conversions

Compare other popular time zone combinations related to CET and IST.

Related Guides & Tools

Read our deep dives and use other timezone mapping tools to simplify your scheduling.

How to Convert CET to IST

Add 4 hours 30 minutes to Central European Time (CET) to get India Standard Time (IST). For example, 9:00 AM CET is 1:30 PM IST and 3:00 PM CET is 7:30 PM IST. CET is the fixed UTC+1 standard-time offset. When Central Europe observes Central European Summer Time (CEST, UTC+2), add 3 hours 30 minutes instead. The live converter above accounts for this seasonal change automatically.

CET to IST Frequently Asked Questions

What is the time difference between CET and IST?

Central European Time is 4 hours 30 minutes behind India Standard Time in winter. During the European summer, many locations switch to CEST and are 3 hours 30 minutes behind IST.

What are the best meeting hours between Central Europe and India?

A practical overlap is 9:00 AM to 1:30 PM CET, which corresponds to 1:30 PM to 6:00 PM IST. During CEST, the equivalent India times are one hour earlier.

Does Central European Time change during summer?

CET itself is always UTC+1, but many Central European countries switch to CEST (UTC+2) from the last Sunday in March until the last Sunday in October.

Is India ahead of or behind Central Europe?

India is ahead of Central Europe. IST is 4 hours 30 minutes ahead of CET and 3 hours 30 minutes ahead of CEST.

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