Skip to main content

Convert IST to CET

India Standard Time (IST) to Central European Time (CET)

Indian IT companies and consulting firms with European clients in Germany, France, and the Netherlands convert IST to CET daily for project calls, sprint reviews, and support rotations. The 4.5-hour gap during CET (3.5 during CEST in summer) provides a generous overlap window, making India-Europe one of the more manageable intercontinental timezone pairings for distributed teams.

When it's 12:00 PM in Mumbai, it's 8:30 AM in Berlin

On Jan 1 – Mar 28, 2026; Oct 25, 2026 – Mar 27, 2027; Oct 31 – Dec 31, 2027: 7:30 AM in Berlin.

IST UTC+5:30 CET UTC+1 / UTC+2 -4:30/-3:30h

Interactive Converter

Pick any time and date to convert between IST and CET.

IST to CET Conversion Table

Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.

Mumbai (IST) Berlin (CET)
12:00 AM 8:30 PM -1 day
1:00 AM 9:30 PM -1 day
2:00 AM 10:30 PM -1 day
3:00 AM 11:30 PM -1 day
4:00 AM 12:30 AM
5:00 AM 1:30 AM
6:00 AM 2:30 AM
7:00 AM 3:30 AM
8:00 AM 4:30 AM
9:00 AM 5:30 AM
10:00 AM 6:30 AM
11:00 AM 7:30 AM
12:00 PM 8:30 AM
1:00 PM 9:30 AM
2:00 PM 10:30 AM
3:00 PM 11:30 AM
4:00 PM 12:30 PM
5:00 PM 1:30 PM
6:00 PM 2:30 PM
7:00 PM 3:30 PM
8:00 PM 4:30 PM
9:00 PM 5:30 PM
10:00 PM 6:30 PM
11:00 PM 7:30 PM

These times apply on all dates in 2026–2027 except:

  • Jan 1 – Mar 28, 2026; Oct 25, 2026 – Mar 27, 2027; Oct 31 – Dec 31, 2027: Berlin times are 1 hour earlier.

Best Meeting Window

Top meeting times for teams in IST and CET (9 AM -- 6 PM work hours, 1-hour meeting).

12a
3a
6a
9a
12p
3p
6p
9p
Mumbai
Berlin
Overlap
Everyone available
Most available
Some overlap
Outside work hours
1 3:00 PM -- 4:00 PM in Mumbai
Mumbai: 3:00 PM Berlin: 11:00 AM

All members within working hours. Everyone in mid-day range.

8.6 / 10
2 4:00 PM -- 5:00 PM in Mumbai
Mumbai: 4:00 PM Berlin: 12:00 PM

All members within working hours. Everyone in mid-day range.

8.6 / 10
3 2:00 PM -- 3:00 PM in Mumbai
Mumbai: 2:00 PM Berlin: 10:00 AM

All members within working hours. Everyone in mid-day range.

8.4 / 10

These times apply on all dates in 2026–2027 except:

  • Jan 1 – Mar 28, 2026; Oct 25, 2026 – Mar 27, 2027; Oct 31 – Dec 31, 2027: Berlin times are 1 hour earlier.

Try the Meeting Planner with custom work hours →

Scheduling Tips

  • Schedule between 1:30-5:30 PM IST / 9:00 AM-1:00 PM CET for the most productive overlap. Both teams are in core hours.
  • During CEST (summer), you get an extra hour of overlap. Use 12:30-5:30 PM IST / 9:00 AM-2:00 PM CEST for wider flexibility.
  • For daily standups, 1:30 PM IST / 9:00 AM CET is the earliest comfortable slot that works for both sides.

Time Difference & DST

The IST to CET gap is -4:30h or -3:30h, depending on daylight saving time. The table lists each period.

Dates MumbaiBerlin Difference
Jan 1 – Mar 28, 2026 UTC+5:30UTC+1 -4:30h
Mar 29 – Oct 24, 2026 UTC+5:30UTC+2 -3:30h
Oct 25, 2026 – Mar 27, 2027 UTC+5:30UTC+1 -4:30h
Mar 28 – Oct 30, 2027 UTC+5:30UTC+2 -3:30h
Oct 31 – Dec 31, 2027 UTC+5:30UTC+1 -4:30h

Mumbai does not use daylight saving time.

Use the interactive converter for a specific date.

Major Cities

India Standard Time (IST)

  • Mumbai
  • Delhi
  • Bangalore

Central European Time (CET)

  • Berlin
  • Munich
  • Frankfurt

Frequently Asked Questions

What is the time difference between IST and CET?
IST (UTC+5:30) is 4 hours and 30 minutes ahead of CET (UTC+1). When it is 3:00 PM in India, it is 10:30 AM in Berlin. During Central European Summer Time (CEST, UTC+2, late March to late October), the gap narrows to 3 hours and 30 minutes.
What is 9:00 AM IST in Central European Time?
9:00 AM IST is 4:30 AM CET -- too early for European offices. Indian morning hours do not overlap with Europe. The productive overlap starts in the Indian afternoon.
Does the IST to CET time difference change during the year?
Yes, but only on the European side. India does not observe DST. When Europe shifts to CEST (UTC+2) from late March to late October, the gap narrows from 4.5 to 3.5 hours, giving teams an extra hour of overlap during European summer.
When is the best time for a call from India to Europe?
The best window from India is 1:30–6:30 PM IST, which maps to 9:00 AM–2:00 PM CET. During CEST (summer), the same IST window maps to 10:00 AM–3:00 PM CEST. Indian afternoons overlap with the European core workday. Use the Meeting Planner to score each slot for your team's specific hours.

Related Guides

Related Conversions

Popular Conversions

Related Meeting Pages

Find the best meeting times for multi-zone teams.