CET
Central European Time
GMT +1
12am
3am
6am
9am
12pm
3pm
6pm
9pm
GST
Gulf Standard Time
GMT +4
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

CET is 3 hours behind GST. CET uses GMT +1, and GST uses GMT +4 for this comparison.

For example, 1:00 pm CET is 4:00 pm GST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-2pm CET, which is 12pm-5pm GST.

Compare CET time with GST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Central European Time is 3 hours behind Gulf Standard Time
1:00 pm13:00 in CET is 4:00 pm16:00 in GST

CET to GST call time
Best time for a conference call or a meeting is between 9am-2pm in CET which corresponds to 12pm-5pm in GST

1:00 pm13:00 Central European Time (CET). Offset UTC +1:00 hour
4:00 pm16:00 Gulf Standard Time (GST). Offset UTC +4:00 hours

1:00 pm13:00 CET / 4:00 pm16:00 GST

CETGST
12am (midnight)3am
1am4am
2am5am
3am6am
4am7am
5am8am
6am9am
7am10am
8am11am
9am12pm (noon)
10am1pm
11am2pm
12pm (noon)3pm
1pm4pm
2pm5pm
3pm6pm
4pm7pm
5pm8pm
6pm9pm
7pm10pm
8pm11pm
9pm12am (midnight)
10pm1am
11pm2am
00:0003:00
01:0004:00
02:0005:00
03:0006:00
04:0007:00
05:0008:00
06:0009:00
07:0010:00
08:0011:00
09:0012:00
10:0013:00
11:0014:00
12:0015:00
13:0016:00
14:0017:00
15:0018:00
16:0019:00
17:0020:00
18:0021:00
19:0022:00
20:0023:00
21:0000:00
22:0001:00
23:0002:00

Central European Time

Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City

Principal Cities: The largest city in the CET time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Rome, Paris, Algiers.

German: MEZ - Mitteleuropäische Zeit

CET Time Zone Geo Map
CET timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central European Summer Time (CEST).

Daylight saving time clock moves back for one hour from 3am to 2amStart: Central European Time (CET) started on Sunday, October 26, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, October 26, 2025, 2:00 am. Standard time starts annually on the last Sunday of October.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Central European Time (CET) ends on Sunday, March 29, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 29, 2026, 3:00 am local daylight time instead. Standard time ends annually on the last Sunday of March.

CET representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for CET
  • A - short form of 'Alpha'
IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Algiers
  • Africa/Ceuta
  • Africa/Tunis
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • MET
  • Poland
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time

Gulf Standard Time

Offset: GST is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: United Arab Emirates

Principal Cities: The largest city in the GST time zone is Dubai in United Arab Emirates, with about 1.137 million people. Other major cities in this time zone include Abu Dhabi, Sharjah, Al Ain, Ajman.

Daylight Saving: Clocks in Gulf Standard Time (GST) do not change for daylight saving time, so GST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

GST Time Zone Geo Map
GST timezone map

GST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +04 - basic short
  • +0400 - basic
  • +04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Delta - Military abbreviation for GST
  • D - short form of 'Delta'
Time zones with the GMT +4 offset:
  • KUYT - Kuybyshev Time
  • MSD - Moscow Daylight Time
  • SAMT - Samara Time
  • AMT - Armenia Time
  • AZT - Azerbaijan Time
  • D - Delta Time Zone
  • GET - Georgia Standard Time
  • GST - Gulf Standard Time
  • MUT - Mauritius Time
  • RET - Reunion Time
  • SCT - Seychelles Time