Segamat has been upgraded to Municipal Council status since 1 January 2018 at Dataran Segamat.[3]
The nation's oldest shopping center, Ampang Park is officially closed.[4]
Astro Radio drops the "FM" suffix for all 11 radio stations as part of its re-branding.[5]
3 January
Four Singaporeans including a child were an Indonesian rebels killed, while five others were injured in the accident involving five vehicles at the junction of Jalan Lukut-Sepang Port Dickson, Negeri Sembilan.
Mah Siew Keong who is also Plantation Industries and Commodities Minister had reportedly made several mistakes in a few lines leaving the audience amused during a joint rally with MCA. His speech has been edited into a viral video.[7]
An actor and film director, Farid Kamil was arrested for allegedly assaulting a traffic policeman and a civilian at the Kota Damansara police station. He also tested positive for marijuana.[10]
Malaysia is set to become first country outside China after Alibaba introduce City Brain an artificial intelligence system in Kuala Lumpur to combat traffic congestion after an agreement between Alibaba and Kuala Lumpur City Hall.[16]
370 individuals were conferred honorary orders, stars and medals in conjunction with the Federal Territory Day.[18]
Five individuals including two Nepali nationals, aged between 19 and 62 were rushed to Penang General Hospital after experiencing weakness, fatigue and unconsciousness as a result of consuming a kind of durian-flavoured premix coffee believed to have mixed with drug.[19]
Sand-dredging vessel JBB Rong Chang 8 is reported to have capsized off Malaysia's southern state of Johor in the waters of Parit Jawa, Muar in which 14 crewmen were missing. Two crewmen were rescued barely alive from the engine room of the vessel by the Civil Defence personnel 50 hours after being trapped in the vessel.[22][23][24]
Malaysia participated at the 2018 Commonwealth Games held in Gold Coast in Australia ,sending 177 athletes to compete in 16 sports. The contingent won 7 golds, 5 silvers and 12 bronzes at the international event.
9 May—The 14th general election was held on this day. For the first time in the country's history, the Barisan Nasional coalition was defeated by the opposition coalition Pakatan Harapan, only winning 79 seats against Pakatan Harapan's 121. The Pan-Malaysian Islamic Party won 18 seats while independents won 3 seats. Former prime minister Mahathir Mohamad, who led Pakatan Harapan to victory, manage to defeat his protege Najib Razak,
10 May -- Mahathir Mohamad is sworn in as the seventh Prime Minister of Malaysia at 2130 hours (GMT+8), as he becomes the world's oldest elected state leader at the age of 92.[27] This marks his return to the position after holding the post previously for 22 years, from 1981 to 2003.
12 May --
A Council of Eminent Persons is formed as government's advisory board, board members are
Mahathir instructs Inland Revenue Board to return taxes collected 'illegally'.
14 May --
Attorney-general Mohamed Apandi Ali goes on unrecorded leave, duties taken over by solicitor-general
MACC chief Dzulkifli Ahmad resigns
Treasurer general Irwan Serigar Abdullah's contract shortened, transferred to Public Service Department
Mahathir says laws on fake news will be clearly defined
Mahathir says political appointments in government-linked companies will be reviewed.
15 May --
Audit Department declassifies its 1MDB report
Council of Eminent Persons sets up a committee on institutional reforms, committee includes:
Retired judge of Court of Appeal Datuk KC Vohrah;
Retired judge of the Court of Appeal and Human Rights Commission of Malaysia (Suhakam) Commissioner Datuk Mah Weng Kwai;
National Patriot Association President Brigadier General (Rtd) Datuk Mohamed Arshad Raji;
University Malaya Tunku Abdul Rahman Professor of Law Emeritus Professor Datuk Dr Shad Saleem Faruqi;
Hakam President and Bar Council former President Datuk Ambiga Sreenevasan
Apandi Ali, Irwan Serigar, Dzulkifli and former IGP Khalid Abu Bakar barred from leaving the country.
16 May --
Pakatan Harapan de facto leader and former Deputy Prime MinisterAnwar Ibrahim is released from prison after being pardoned by the Yang di-Pertuan Agong. He had served three years of his prison sentence.
Police search Najib's house and seize handbags and clothes
Government announces GST will be zero-rated effective, 1 June 2018
Mahathir to sack 17,000 political appointees from civil service
Registrar of Societies approves Pakatan Harapan's registration.
Ministries instructed to cease use of 1Malaysia slogan
Kedai Rakyat 1Malaysia 2.0 (KR1M) programme ceased
Board meetings of the Cooperatives Commission of Malaysia and committees which have political appointees to be postponed.
17 May
Mahathir appoints himself as education minister, and Wan Azizah as women and welfare minister
Police search at Najib's house continues
Police arrest man for insulting Mahathir.
Finance Ministry initiates fiscal reforms.
18 May
Withdrew his appointment as education minister in light of his promise with the Pakatan Harapan coalition
Mahathir disagrees with police action to arrest a man who insulted him.
20 May
Former executive of PetroSaudi whistleblower Swiss national Xavier Justo meets Mahathir [28]
21 May
Special task force formed to investigate the 1MDB scandal as well as to prosecute wrongdoers and retrieve related assets. Task force would be jointly headed by former attorney-general Abdul Gani Patail, former MACC head Abu Kassim Mohamed, current MACC head Mohd Shukri Abdull and former special branch head Abdul Hamid Bador.
Deputy prime minister Wan Azizah Wan Ismail and several federal ministers officially sworn in as members of cabinet.
22 May
Former PM Najib Razak is brought in for questioning at the Malaysian Anti-Corruption Commission (MACC).
28 May
Mahathir postponed the Kuala Lumpur-Singapore High Speed Rail project citing the enormous cost of construction and gloom prospects of returns and benefits for Malaysia.
June
Date
Event
1 June
The hugely unpopular Goods and Services Tax (GST) is reduced to 0% by the Malaysian Government.
5 June
Tommy Thomas is officially appointed as the Attorney General, being the first non-Malay to be appointed to the post.
Malaysia participated at the 2018 Asian Games held in Jakarta and Palembang in Indonesia, sending 447 athletes to compete in 38 sports. The national contingent won 7 Golds, 13 Silvers and 16 Bronzes at the continental event.[34]
Malaysia participated at the 2018 Asian Para Games held in Jakarta in Indonesia, sending 126 athletes to compete in 15 sports. The national contingent won 17 Golds, 26 Silvers and 25 Bronzes at the continental event.[38]
6 November - Mahathir visited Japan, and received a medal of the Emperor of Japan.
15 November - Mahathir came back to Kuala Lumpur since end the 33rd Asean summit in Singapore.
26 November - A riot that took place at the Sri Maha Mariamman Temple, Subang Jaya, Selangor between property developer and temple devotees over relocation issue was followed by the death of a fireman who involved in the incident, Muhammad Adib Mohd Kassim weeks later.[40]
December
4 December - A gas piping explosion in one of the food outlet at Cityone Megamall in Kuching, Sarawak resulted in 3 deaths and 22 injuries.[41]
16 December - Mohd Hafiz Nor Azman, a 22-year-old motorcycle racer was killed in an accident when competing at the Petronas AAM Malaysian Cub Prix championships at Dataran Bandar Penawar, Johor.[42]
Malaysia was only formed on September 16, 1963. Prior to that date, Peninsular Malaysia was known as Malaya, Sarawak under Crown Colony of Sarawak and Kingdom of Sarawak and Sabah under North Borneo.