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Specific time, zone to zone

6:00 am CET to IST — 10:30 am IST

6:00 am Central European Time (CET) is 10:30 am India Standard Time (IST) while both regions are on standard time. During the daylight saving period the answer becomes 9:30 am, because one of the two zones shifts its clocks and the other does not.

Standard time

10:30 am

Applies while neither zone is on daylight saving — broadly November to March in the northern hemisphere.

Daylight saving

9:30 am

Applies while the clocks are forward. This pair does not keep a constant gap, so check the date.

Full-day table Questions

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How the two zones line up

Central European Time runs at UTC+1 in winter and UTC+2 in summer. India Standard Time runs at UTC+5:30 and UTC+5:30 respectively. Take the difference between the two, add it to 6:00 am, and you get the local time on the other side.

Daylight saving

This pair is one of the awkward ones: the gap between the two zones is not constant, so a meeting booked in one season drifts by an hour in the other. Diary invitations sent as a fixed clock time rather than as a calendar event are the usual casualty.

Where this conversion gets used

  • Supplier and factory calls
  • offshore delivery teams
  • shipping cut-offs
  • remote hiring interviews

CET to IST — every hour

Both columns are computed from the IANA database, so they follow the real transition dates.

CET IST — standard IST — daylight saving
12:00 am 4:30 am 3:30 am
1:00 am 5:30 am 4:30 am
2:00 am 6:30 am 5:30 am
3:00 am 7:30 am 6:30 am
4:00 am 8:30 am 7:30 am
5:00 am 9:30 am 8:30 am
6:00 am 10:30 am 9:30 am
7:00 am 11:30 am 10:30 am
8:00 am 12:30 pm 11:30 am
9:00 am 1:30 pm 12:30 pm
10:00 am 2:30 pm 1:30 pm
11:00 am 3:30 pm 2:30 pm
12:00 pm 4:30 pm 3:30 pm
1:00 pm 5:30 pm 4:30 pm
2:00 pm 6:30 pm 5:30 pm
3:00 pm 7:30 pm 6:30 pm
4:00 pm 8:30 pm 7:30 pm
5:00 pm 9:30 pm 8:30 pm
6:00 pm 10:30 pm 9:30 pm
7:00 pm 11:30 pm 10:30 pm
8:00 pm 12:30 am (next day) 11:30 pm
9:00 pm 1:30 am (next day) 12:30 am (next day)
10:00 pm 2:30 am (next day) 1:30 am (next day)
11:00 pm 3:30 am (next day) 2:30 am (next day)

Questions people ask

10:30 am IST during standard time, and 9:30 am while daylight saving is in effect. Check which period the date falls in before you commit to a slot.

Related conversions

11:00 pm GMT to IST 12:00 am GMT to IST 7:00 am CET to IST 8:00 am CET to IST

All conversions →

Booking something recurring?

A fixed clock time drifts when either side changes its clocks. Our guides explain how to stop that happening.

Read the DST guide Plan a meeting