CAT
Central Africa Time
GMT +2
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AST
Arabia Standard Time
GMT +3
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

CAT is 1 hour behind AST. CAT uses GMT +2, and AST uses GMT +3 for this comparison.

For example, 2:00 pm CAT is 3:00 pm AST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-4pm CAT, which is 10am-5pm AST.

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

Time Difference

Central Africa Time is 1 hour behind Arabia Standard Time
2:00 pm14:00 in CAT is 3:00 pm15:00 in AST

CAT to AST call time
Best time for a conference call or a meeting is between 9am-4pm in CAT which corresponds to 10am-5pm in AST

2:00 pm14:00 Central Africa Time (CAT). Offset UTC +2:00 hours
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours

2:00 pm14:00 CAT / 3:00 pm15:00 AST

CATAST
12am (midnight)1am
1am2am
2am3am
3am4am
4am5am
5am6am
6am7am
7am8am
8am9am
9am10am
10am11am
11am12pm (noon)
12pm (noon)1pm
1pm2pm
2pm3pm
3pm4pm
4pm5pm
5pm6pm
6pm7pm
7pm8pm
8pm9pm
9pm10pm
10pm11pm
11pm12am (midnight)
00:0001:00
01:0002:00
02:0003:00
03:0004:00
04:0005:00
05:0006:00
06:0007:00
07:0008:00
08:0009:00
09:0010:00
10:0011:00
11:0012:00
12:0013:00
13:0014:00
14:0015:00
15:0016:00
16:0017:00
17:0018:00
18:0019:00
19:0020:00
20:0021:00
21:0022:00
22:0023:00
23:0000:00

Central Africa Time

Offset: CAT is 2 hours ahead Greenwich Mean Time (GMT) and is used in Africa

Countries using this time zone: Burundi, Botswana, Congo (Dem. Rep.), Malawi, Mozambique, Namibia, Rwanda, Sudan, South Sudan, Zambia, Zimbabwe

Principal Cities: The largest city in the CAT time zone is Khartoum in Sudan, with about 1.975 million people. Other major cities in this time zone include Harare, Lubumbashi, Lusaka, Omdurman.

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

CAT Time Zone Geo Map
CAT timezone map

CAT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for CAT
  • B - short form of 'Bravo'
IANA/Olson: Reflects CAT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Blantyre
  • Africa/Bujumbura
  • Africa/Gaborone
  • Africa/Harare
  • Africa/Juba
  • Africa/Khartoum
  • Africa/Kigali
  • Africa/Lubumbashi
  • Africa/Lusaka
  • Africa/Maputo
  • Africa/Windhoek
Time zones with the GMT +2 offset:
  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time

Arabia Standard Time

Offset: AST is 3 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Saudi Arabia

Principal Cities: The largest city in the AST time zone is Riyadh in Saudi Arabia, with about 4.206 million people. Other major cities in this time zone include Jeddah, Mecca, Medina, Sultanah.

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

AST Time Zone Geo Map
AST timezone map

AST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Charlie - Military abbreviation for AST
  • C - short form of 'Charlie'
AST Abbreviation: Several time zones share AST abbreviation and it could refer to these time zones
  • Atlantic Standard Time - UTC -4
  • Arabia Standard Time - UTC +3
Time zones with the GMT +3 offset:
  • EEST - Eastern European Summer Time
  • MSK - Moscow Standard Time
  • AST - Arabia Standard Time
  • C - Charlie Time Zone
  • EAT - Eastern Africa Time
  • FET - Further Eastern European Time
  • IDT - Israel Daylight Time
  • TRT - Turkey Time