ClockinSyncBuilt for teams without borders

Search cities, timezones...

About Features Pricing Contact Us Install Free

CEST to IST Time Converter

Central European Summer Time → India Standard Time

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

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

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

CEST (Paris) ↔ IST (Mumbai)

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

CEST (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 cest and ist?

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

Where is cest used?

Central European Summer Time (cest) 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 cest to ist?

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

Popular CEST conversions

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

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

CEST (Paris) is 4 hours 30 minutes behind IST (Mumbai). At noon in CEST (Paris), your contact in IST (Mumbai) sees 15:00.

CEST (Paris) runs on Europe/Paris; IST (Mumbai) runs on Asia/Kolkata. Together they are 3.5 hours 30 minutes apart.

Working hours overlap

CEST (Paris) and IST (Mumbai) share 4.5 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.

00:0006:0012:0018:0024:00

CEST (Paris)

IST (Mumbai)

Overlap (4.5h)

Best call times between these locations

There is a 4.5-hour daily window where both locations are in business hours. The 3 best slots are listed 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

Working hours defined as 09:00–17:00 local time for each location.

Public holidays for both locations

CEST (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.

Scheduling between CEST (Paris) and IST (Mumbai)

CEST (Paris) (France) and IST (Mumbai) (India) are 3.5 hours apart. With a 4.5-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.

💡 Scheduling tips for these locations

✅

If you are in CEST (Paris), aim for 09:00–10:00, which corresponds to 12:00–13:00 in IST (Mumbai) — both teams are within working hours.

✅

If you are in CEST (Paris), aim for 10:00–11:00, which corresponds to 13:00–14:00 in IST (Mumbai) — both teams are within working hours.

✅

If you are in CEST (Paris), aim for 11:00–12:00, which corresponds to 14:00–15:00 in IST (Mumbai) — both teams are within working hours.

Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.

Add to your browser — Free →

Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am CEST (Paris)".