Question 1

What is the time difference between CET and IST?

Accepted Answer

India Standard Time (IST) is 4 hours and 30 minutes ahead of Central European Time (CET). Use the conversion table above to see the exact time for each hour.

Question 2

How do I convert CET to IST?

Accepted Answer

To convert CET to IST, add 4 hours and 30 minutes to the CET time. For example, 9:00 AM CET is 1:30 PM IST.

Question 3

What time is it in IST when it's noon in CET?

Accepted Answer

When it's 12:00 PM (noon) in CET, it's 4:30 PM in IST. IST is 4 hours and 30 minutes ahead of CET.

Question 4

How many hours ahead is IST from CET?

Accepted Answer

IST is 4 hours and 30 minutes ahead of CET. This means when it's 9:00 AM in CET, it's 1:30 PM in IST.

Question 5

Is IST ahead or behind CET?

Accepted Answer

IST is ahead of CET by 4 hours and 30 minutes. Clocks in IST show a later time than CET.

Question 6

Does CET observe daylight saving time?

Accepted Answer

Yes, Central European Time observes daylight saving time. During DST, the abbreviation changes to CEST and clocks move forward by one hour.

Question 7

Does IST observe daylight saving time?

Accepted Answer

No, India Standard Time does not observe daylight saving time. The UTC offset remains the same year-round.

Question 8

What is the best time to call from CET to IST?

Accepted Answer

The best time for a call between CET and IST is during overlapping business hours (9 AM – 5 PM) in both timezones. Check the color-coded conversion table above — green hours indicate business hours in both zones.

Question 9

When does daylight saving time change in CET?

Accepted Answer

Daylight saving time transitions vary by year and region. Central European Time observes DST, which typically shifts clocks forward by one hour in spring and back in fall. During DST transitions, the time difference between CET and IST may temporarily change. Check our DST change calendar for exact dates.

Question 10

Do CET and IST ever have the same time?

Accepted Answer

No, CET and IST never show the same time. However, because CET observes daylight saving time and IST does not, the time difference between them changes by one hour during DST transitions.

Central European Time (CET)	Period	India Standard Time (IST)	Period
12:00 AM	Night	4:30 AM	Night
1:00 AM	Night	5:30 AM	Night
2:00 AM	Night	6:30 AM	Morning
3:00 AM	Night	7:30 AM	Morning
4:00 AM	Night	8:30 AM	Morning
5:00 AM	Night	9:30 AM	Business
6:00 AM	Morning	10:30 AM	Business
7:00 AM	Morning	11:30 AM	Business
8:00 AM	Morning	12:30 PM	Business
9:00 AM	Business	1:30 PM	Business
10:00 AM	Business	2:30 PM	Business
11:00 AM	Business	3:30 PM	Business
12:00 PM	Business	4:30 PM	Business
1:00 PM	Business	5:30 PM	Business
2:00 PM	Business	6:30 PM	Evening
3:00 PM	Business	7:30 PM	Evening
4:00 PM	Business	8:30 PM	Evening
5:00 PM	Business	9:30 PM	Evening
6:00 PM	Evening	10:30 PM	Evening
7:00 PM	Evening	11:30 PM	Evening
8:00 PM	Evening	12:30 AM+1d	Night
9:00 PM	Evening	1:30 AM+1d	Night
10:00 PM	Evening	2:30 AM+1d	Night
11:00 PM	Evening	3:30 AM+1d	Night

CET to IST Converter

Timezone Details

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CET to IST Conversion Table

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