TimezoneToolbox

CET to IST converter

IST is usually 3 h 30 min ahead of CET. It is 4 h 30 min ahead of CET 1 Jan–29 Mar and 25 Oct–31 Dec 2026, because of daylight saving time.

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CET to IST table

For 12 July 2026, when IST is 3 h 30 min ahead of CET. Other dates: see the table on the right.

CETIST24-hour
12:00 AM3:30 AM 0:00 → 3:30
1:00 AM4:30 AM 1:00 → 4:30
2:00 AM5:30 AM 2:00 → 5:30
3:00 AM6:30 AM 3:00 → 6:30
4:00 AM7:30 AM 4:00 → 7:30
5:00 AM8:30 AM 5:00 → 8:30
6:00 AM9:30 AM 6:00 → 9:30
7:00 AM10:30 AM 7:00 → 10:30
8:00 AM11:30 AM 8:00 → 11:30
9:00 AM12:30 PM 9:00 → 12:30
10:00 AM1:30 PM 10:00 → 13:30
11:00 AM2:30 PM 11:00 → 14:30
12:00 PM3:30 PM 12:00 → 15:30
1:00 PM4:30 PM 13:00 → 16:30
2:00 PM5:30 PM 14:00 → 17:30
3:00 PM6:30 PM 15:00 → 18:30
4:00 PM7:30 PM 16:00 → 19:30
5:00 PM8:30 PM 17:00 → 20:30
6:00 PM9:30 PM 18:00 → 21:30
7:00 PM10:30 PM 19:00 → 22:30
8:00 PM11:30 PM 20:00 → 23:30
9:00 PM12:30 AM next day21:00 → 0:30
10:00 PM1:30 AM next day22:00 → 1:30
11:00 PM2:30 AM next day23:00 → 2:30

When the difference changes

Computed from the IANA tz database (release 2026c). Governments can change these rules; the live converter uses your browser’s own copy of the database.

2026: from (UTC)until (UTC)IST vs CET
1 January 202629 March 20264 h 30 min ahead of
29 March 202625 October 20263 h 30 min ahead of
25 October 202631 December 20264 h 30 min ahead of
2027: from (UTC)until (UTC)IST vs CET
1 January 202728 March 20274 h 30 min ahead of
28 March 202731 October 20273 h 30 min ahead of
31 October 202731 December 20274 h 30 min ahead of

CET: Central European Time · CET time now
In summer the same countries use CEST (UTC+2).

IST: India Standard Time · IST time now
IST can also mean Irish Standard Time or Israel Standard Time. This page means India (Asia/Kolkata), which has one zone and no daylight saving time.

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Questions

What is the time difference between CET and IST?

IST is usually 3 h 30 min ahead of CET. It is 4 h 30 min ahead of CET 1 Jan–29 Mar and 25 Oct–31 Dec 2026, because of daylight saving time.

What is 9 am CET in IST?

9:00 am CET is 12:30 PM IST, on dates when the usual difference applies. Use the converter above for any specific date.

Which CET does this page use?

In summer the same countries use CEST (UTC+2).

Which IST does this page use?

IST can also mean Irish Standard Time or Israel Standard Time. This page means India (Asia/Kolkata), which has one zone and no daylight saving time.