CET to IST Time Converter

Central European Time → India Standard Time

CET = UTC+2IST = UTC+5:30

⚠️ IST is ambiguous — on this page it means India Standard Time. It also refers to:

CET → Ireland Standard Time (Dublin) ↗CET → Israel Standard Time (Jerusalem) ↗

ClockinSync

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CET (Paris)BASE

09:00

00:0006:0012:0018:0024:00

IST (Mumbai)

India · +3.5h

12:30

London

United Kingdom · -1h

08:00

New York

USA · -6h

03:00

Tokyo

Japan · +7h

16:00

Dubai

United Arab Emirates · +2h

11:00

CET (Paris) to IST (Mumbai) — exact time difference

CET (Paris) is 4 hours 30 minutes behind IST (Mumbai). When CET (Paris) clocks hit noon, IST (Mumbai) reads 15:00.

CET (Paris) observes Europe/Paris and IST (Mumbai) observes Asia/Kolkata — a 3.5 hours 30 minutes gap between them.

Business hours comparison

A 4.5-hour overlap exists between CET (Paris) and IST (Mumbai) each day during standard 9:00–17:00 working hours.

00:0006:0012:0018:0024:00

CET (Paris)

IST (Mumbai)

Overlap (4.5h)

Best call times between these locations

CET (Paris) and IST (Mumbai) share 4.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

09:00 Paris / 12:00 Mumbai✓ Both working

10:00 Paris / 13:00 Mumbai✓ Both working

11:00 Paris / 14:00 Mumbai✓ Both working

Based on standard 09:00–17:00 working hours in each location's local time.

Holidays affecting scheduling

CET (Paris)9 holidays

May 1Labour DaySOON

May 8Victory in Europe DaySOON

May 14Ascension DaySOON

May 25Whit Monday

Jul 14Bastille Day

IST (Mumbai)

No upcoming public holidays this year.

How to work with CET (Paris) and IST (Mumbai) time zones

Working across CET (Paris) (France) and IST (Mumbai) (India) involves a 3.5-hour gap. The good news: there is a 4.5-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.

💡 Practical scheduling guidelines

✅

09:00–10:00 in CET (Paris) = 12:00–13:00 in IST (Mumbai). Both sides are in standard business hours during this window.

✅

10:00–11:00 in CET (Paris) = 13:00–14:00 in IST (Mumbai). Both sides are in standard business hours during this window.

✅

11:00–12:00 in CET (Paris) = 14:00–15:00 in IST (Mumbai). Both sides are in standard business hours during this window.

Time differences can shift unexpectedly when either location observes daylight saving.

Drag the slider at the top to convert any CET (Paris) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

CET (Paris) ↔ IST (Mumbai)

5h of business hours overlap daily (09:00–17:00)

CET (Paris)

IST (Mumbai)

00:00

03:30

01:00

04:30

02:00

05:30

03:00

06:30

04:00

07:30

05:00

08:30

06:00

09:30Working

07:00

10:30Working

08:00

11:30Working

09:00Working

12:30Working

10:00Working

13:30Working

11:00Working

14:30Working

12:00Working

15:30Working

13:00Working

16:30Working

14:00Working

17:30off

15:00Working

18:30off

16:00Working

19:30off

17:00

20:30

18:00

21:30

19:00

22:30

20:00

23:30

21:00

00:30+1d

22:00

01:30+1d

23:00

02:30+1d

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between cet and ist?

Central European Time (cet) is UTC+2 and India Standard Time (ist) is UTC+5:30. The difference between them is 3.5 hours.

Where is cet used?

Central European Time (cet) is used in France and surrounding regions. The IANA timezone identifier is Europe/Paris.

Where is ist used?

India Standard Time (ist) is used in India and surrounding regions. The IANA timezone identifier is Asia/Kolkata. Note: ist is ambiguous and may refer to other timezones.

How do I convert cet to ist?

Use the interactive converter above. Drag the time slider to any cet time and the ist equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular CET conversions

CET → London CET → New York CET → Tokyo CET → Dubai CET → Sydney CET → Berlin CET → Singapore CET → Los Angeles CET → Toronto CET → Mumbai

Popular IST conversions

London → IST New York → IST Tokyo → IST Dubai → IST Sydney → IST Paris → IST Berlin → IST Singapore → IST Los Angeles → IST Toronto → IST