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

India Standard Time (ist) is used in India. The IANA timezone identifier is Asia/Kolkata.

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

BASE

09:00

Work Clients Team +

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) vs IST (Mumbai) — time difference

CET (Paris) is 4 hours 30 minutes behind IST (Mumbai). Midday in CET (Paris) lines up with 15:00 in IST (Mumbai).

CET (Paris) is in the Europe/Paris timezone. IST (Mumbai) is in Asia/Kolkata. The difference is 3.5 hours 30 minutes.

Shared working hours

There is a 4.5-hour window each day where both CET (Paris) and IST (Mumbai) are within standard business hours (09:00–17:00).

00:0006:0012:0018:0024:00

CET (Paris)

IST (Mumbai)

Overlap (4.5h)

When to schedule across time zones

Both CET (Paris) and IST (Mumbai) are in standard hours simultaneously for 4.5h per day. 3 recommended slots shown below.

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.

Upcoming public holidays

CET (Paris)5 holidays

Jul 14Bastille Day

Aug 15Assumption Day

Nov 1All Saints' Day

Nov 11Armistice Day

Dec 25Christmas 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.

💡 How to schedule across these time zones

✅

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.

DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.

Get the Extension — Free →

Use the time slider above to find the exact equivalent time for any moment in CET (Paris). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.

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