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ASEAN Common Time


ASEAN Common Time

ASEAN Common Time is an idea proposed by the Association of Southeast Asian Nations to adopt a standard time of UTC+08:00 for all member countries. Some regional businesses have already begun adopting the phrase "ASEAN Common Time," and often use the abbreviation ACT in their press releases, communications, and legal documents.

There are also ASEAN citizens who have started using "ACT" on their websites and blogs. Authorities are looking to bring the unified time zone into use by 2015, when they expect the ASEAN Free Trade Area to be fully implemented, with the potential time realignment promoted as a way to better expedite commerce.

But some commentators suggest using UTC+07:00 instead, as UTC+08:00 would create problems in the Kachin State of Myanmar during summer months, with a late sunrise taking place at 07:20 and a late sunset at 20:45. Other experts advocate calling UTC+08:00 ASEAN Central Time, putting Myanmar at UTC+07:00, and leaving less populous eastern Indonesia at UTC+09:00.

This would result in the vast majority of the region's people and territory lining up at UTC+08:00—in sync with China, Hong Kong, Macau, Taiwan, and Western Australia. The eastern islands of Indonesia would remain at UTC+09:00—in sync with North Korea, South Korea, Japan, Palau, and East Timor.

As of 2012, the four different time zones used by ASEAN countries were UTC+06:30 (Myanmar); UTC+07:00 (Cambodia, Laos, Thailand, Vietnam, and western Indonesia); UTC+08:00 (Singapore, Malaysia, Brunei, Philippines, and central Indonesia); and UTC+09:00 (eastern Indonesia).


  • List 1
  • Citations 2
  • External links 3
  • Sites using ACT 4
  • See also 5
  • References 6


ASEAN relation Country UTC offset Acronym Notes More
ASEAN member  Burma +06:30 MST Some experts suggest that moving to UTC+07:00, rather than UTC+08:00, would be a more natural change. Time in Myanmar
ASEAN member  Thailand +07:00 ICT Tried unsuccessfully to switch to UTC+08:00 in 2001 by then-Prime Minister Thaksin Shinawatra. Issue remains under discussion. Time in Thailand
ASEAN member  Laos +07:00 ICT
ASEAN member  Vietnam +07:00 ICT From 1975-06-13 after reunification Time in Vietnam
ASEAN member  Cambodia +07:00 ICT Time in Cambodia
ASEAN member  Indonesia +07:00
A single national time zone of UTC+08:00 may be in place by Independence Day (August 17), although some scientists favor leaving the east at UTC+09:00. Time in Indonesia
ASEAN member  Singapore +08:00 SGT From 1982-01-01 Time in Singapore
ASEAN member  Malaysia +08:00 MYT Peninsular Malaysia switched from UTC+07:30 on 1982-01-01, and East Malaysia uses it since 1933, except for the Japanese Occupation during World War Two. Time in Malaysia
ASEAN member  Brunei +08:00 BNT
ASEAN member  Philippines +08:00 PHT Time in the Philippines
ASEAN observer  Timor-Leste +09:00 TLT
ASEAN observer  Papua New Guinea +10:00 PGT
ASEAN Plus Three  Japan +09:00 JST Time in Japan
ASEAN Plus Three  South Korea +09:00 KST Korean Standard Time
ASEAN Plus Three  People's Republic of China +08:00 CST Time in China


Abdullah Ahmad Badawi: "... in order to keep ASEAN with the people, ... some possibilities come to mind, such as an ASEAN common time zone...".[1]

The Nation, December 1996: "...deferred a plan for the creation of a common Asean time zone ..." [2]

"The idea has since been under discussion by ASEAN, with Singapore supporting it strongly." [3]

External links

  • "Press Statement The First Informal ASEAN Heads of Government Meeting Jakarta" (Press release). 1996-11-30. 
  • "Joint Communique of The 29th ASEAN Ministerial Meeting (AMM) Jakarta, 1996-07-20/21". 

Sites using ACT


  • Asian Media Development Group


  • South-East Asia (L2-SEA) official siteLineage II
  • ASEAN - Asia's Perfect 10
  • Blognet

See also


  1. ^ "Association of Southeast Asian Nations · ASEAN Anthem". Retrieved 2013-10-12. 
  2. ^,68698
  3. ^ [1]
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