Flags on public buildings were raised at 9am on Wednesday as the period of mourning for Sheikh Khalifa ended.
The Ministry of Presidential Affairs said the 40-day period concluded on Tuesday night.
Sheikh Khalifa died on May 13 at the age of 73.
Work across the country was suspended for three days immediately after his death.
Flags had remained at half-staff since. This period was intended as a mark of respect and life across the UAE took on a more sombre tone.
Sheikh Khalifa was the country's second president after UAE Founding Father, the late Sheikh Zayed bin Sultan Al Nahyan.
Sheikh Mohamed was elected President by the Federal Supreme Council last month.
Sheikh Khalifa remembered: in pictures
Killing of Qassem Suleimani
The five pillars of Islam
BIGGEST CYBER SECURITY INCIDENTS IN RECENT TIMES
SolarWinds supply chain attack: Came to light in December 2020 but had taken root for several months, compromising major tech companies, governments and its entities
Microsoft Exchange server exploitation: March 2021; attackers used a vulnerability to steal emails
Kaseya attack: July 2021; ransomware hit perpetrated REvil, resulting in severe downtime for more than 1,000 companies
Log4j breach: December 2021; attackers exploited the Java-written code to inflitrate businesses and governments
Mohammed bin Zayed Majlis
The five pillars of Islam
1. Fasting
2. Prayer
3. Hajj
4. Shahada
5. Zakat
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Killing of Qassem Suleimani
The burning issue
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
Read part four: an affection for classic cars lives on
Read part three: the age of the electric vehicle begins
Read part one: how cars came to the UAE
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Our legal columnist
Name: Yousef Al Bahar
Advocate at Al Bahar & Associate Advocates and Legal Consultants, established in 1994
Education: Mr Al Bahar was born in 1979 and graduated in 2008 from the Judicial Institute. He took after his father, who was one of the first Emirati lawyers
COMPANY PROFILE
Name: Kumulus Water
Started: 2021
Founders: Iheb Triki and Mohamed Ali Abid
Based: Tunisia
Sector: Water technology
Number of staff: 22
Investment raised: $4 million
