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Specific time, zone to zone

6:00 am CET to GST — 9:00 am GST

6:00 am Central European Time (CET) is 9:00 am Gulf Standard Time (GST) while both regions are on standard time. During the daylight saving period the answer becomes 8:00 am, because one of the two zones shifts its clocks and the other does not.

Standard time

9:00 am

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

Daylight saving

8:00 am

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

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How the two zones line up

Central European Time runs at UTC+1 in winter and UTC+2 in summer. Gulf Standard Time runs at UTC+4 and UTC+4 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 GST — every hour

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

CETGST — standardGST — daylight saving
12:00 am3:00 am2:00 am
1:00 am4:00 am3:00 am
2:00 am5:00 am4:00 am
3:00 am6:00 am5:00 am
4:00 am7:00 am6:00 am
5:00 am8:00 am7:00 am
6:00 am9:00 am8:00 am
7:00 am10:00 am9:00 am
8:00 am11:00 am10:00 am
9:00 am12:00 pm11:00 am
10:00 am1:00 pm12:00 pm
11:00 am2:00 pm1:00 pm
12:00 pm3:00 pm2:00 pm
1:00 pm4:00 pm3:00 pm
2:00 pm5:00 pm4:00 pm
3:00 pm6:00 pm5:00 pm
4:00 pm7:00 pm6:00 pm
5:00 pm8:00 pm7:00 pm
6:00 pm9:00 pm8:00 pm
7:00 pm10:00 pm9:00 pm
8:00 pm11:00 pm10:00 pm
9:00 pm12:00 am (next day)11:00 pm
10:00 pm1:00 am (next day)12:00 am (next day)
11:00 pm2:00 am (next day)1:00 am (next day)

Questions people ask

9:00 am GST during standard time, and 8:00 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 EST to BRT12:00 am EST to BRT7:00 am CET to GST8:00 am CET to GST

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 guidePlan a meeting