A few hours before his father's death on 22 January 2010, Tunku Ibrahim was appointed as the
Regent of Johor, following medical reports that suggested Sultan Iskandar's impending death. Sultan Iskandar died on the same night, and Tunku Ibrahim was installed as the Sultan of Johor the following morning. The Menteri Besar (Chief Minister) of Johor,
Abdul Ghani Othman cited that Sultan Ibrahim and immediate members of the royal family would undertake a mourning period of 40 days. Sultan Ibrahim also declared
Muar as Johor's new royal capital, replacing
Johor Bahru, on 5 February 2012. This coincided with the
Mawlid celebrations. Sultan Ibrahim became the first ruler of
Johor to celebrate his birthday celebration in Muar on 22 November 2012. He picked the town because it was "rich in history and tradition besides being peaceful, beautiful and progressive". He wanted the state government to gazette all the old buildings in the town as a state heritage. He also wants the local authorities to preserve the cleanliness of the
Muar River which could be done by relocating the bus and taxi terminals elsewhere. Johor, as with the former
Unfederated Malay States of
Perlis, Kedah,
Kelantan and
Terengganu, used to rest on Fridays and Saturdays, in contrast with the former
Federated Malay States as well as
Malacca, Penang,
Sabah and
Sarawak and the
Federal Territory which observe their weekends on Saturdays and Sundays. Johor, together with Perlis, moved their weekend to Saturday and Sunday on 1 January 1994 to synchronise with neighboring Singapore as well as with
Kuala Lumpur, as Johor by then was a quickly industrialising state. However, on 22 November 2013, on Sultan Ibrahim's birthday celebrations, he decreed that Johor would move its weekend back to Friday and Saturday, to enable
Muslims in the state to attend their Friday prayers, effective 1 January 2014. This move was not without controversy due to the disruptions it caused, particularly for private businesses dealing with Singapore. The private sector nevertheless continues to rest on Saturdays and Sundays. commemorating Ibrahim's coronation as Sultan of JohorSultan Ibrahim was crowned as the Sultan of
Johor on 23 March 2015. The last coronation was that of his grandfather Sultan
Ismail on 10 February 1960. From 2015 onwards, 23 March was made an annual state public holiday as the Sultan's official birthday, replacing the public holiday on 22 November, the Sultan's actual birthday. In August 2015, Sultan Ibrahim decreed that the name of
Kulaijaya district be reverted to its former name of Kulai. He also decreed
Nusajaya to be renamed to Iskandar Puteri, as well as renaming
Ledang District to Tangkak District. Sultan Ibrahim issued a decree banning
vaping in Johor effective 1 January 2016. The purposes of the ban was for the sake of the health of the residents of Johor.
Kelantan and
Terengganu followed soon after. Ibrahim is noted for advocating religious moderation and has criticised the creeping
Arabisation of Malaysian Muslim culture. Despite being the only sultan in Malaysia without tertiary (post-secondary) education, he has promoted quality education for Johor. == King of Malaysia (2024–present) ==