Celebrations of Chinese New Year in Brunei are observed with reference to the dates of the Chinese lunar calendar. The festival usually takes a period of two weeks, where families reunite and gather as well as exchanging gifts and greetings. A grand dinner on Chinese New Year eve is a major highlight of the celebration. The dinner represents abundance, prosperity, and good luck for the year ahead.
Celebrations of the grand festivals begin with a procession featuring dragons, devils, and serpents. Lighting paper lanterns and firework shows also marks the grand celebration for the festival.

(Every 12 Rabiulawal; the third month in the Islamic lunar calendar of Hijrah) This day is also known as Mauludi'l Rasul in Brunei. To celebrate the birthday anniversary of Prophet Muhammad SAW; Muslims in the country, usually the men, have a mass gathering at Taman Sultan Haji Sir Omar Ali Saifuddien. His Majesty the Sultan then leads a procession on foot through the capital city's main streets accompanied by members of the royal family. This day serves as a reminder about how Islam began and the Prophet's journey.

(23 February) Two months of preparations culminate in this grand celebration. The National Day celebration provides an opportunity for the public and tourists to witness how the country celebrates this occasion. Attended by His Majesty and His Royal family, the event starts with a march pass in front of the Royal Dais led by the giant Brunei Flag Carrier, followed by the contingent of National Day logo flags carrier, The Royal Brunei Armed Forces, The Royal Brunei Police Force, other uniformed agencies, ministries and departments, districts, private sectors, private schools, higher educational institutions, colleges, schools, associations and public organizations. After the Oath Recital for National Day, witness a colorful and raucous performance from the participants.

(Ramadan is the ninth month of the Islamic Lunar calendar) The holy month of Ramadan is set aside as a period of introspection and abstinence for the Bruneian Muslims. It is a month of fasting where Muslims refrain from consuming food and drinks from dawn to dusk for the whole month.
During this period, government offices close at 2pm and food markets open up in the afternoon for people buying food for their evening meal. The food stalls sell a variety of local cakes, pastry and fruits are set up at various places. This is a month to try the many different dishes and local cakes, pleasure to the taste buds and cheap too.
Only the sick are excused from fasting during this month. Muslims are expected to avoid lying, breaking promise or cheating during the month of Ramadan.

(First day of Syawal, the tenth month of the Islamic Lunar calendar) This is the country's biggest celebration marking the end of the fasting month of Ramadan and often carries on for a whole month. This day signifies a triumph of the spirit in completing one of the five pillars of Islam and a new beginning. Prayers are held in the early morning of the first day of Hari Raya at every mosque throughout the country. The first day is usually a family get-together occasion, although they do accept visitors. The second day sees friends and relatives visiting one another. Food plays a key role in the celebration and there are treats that are only available during this time.
Furthermore, during Hari Raya; the public and tourists get the opportunity to meet His Majesty and other members of the Royal family during the Palace Open House, usually for three days starting from the second day.

(Beginning of Zulhijjah; the final month in the Islamic lunar calendar of Hijrah) This day is also known as Hari Raya Korban or Hari Raya Haji to Bruneian Muslims. It marks the end of the Haji or holy pilgrimage to Mecca. After the Aidil Adha prayers at the mosques in Brunei, families usually invite their relatives and friends to come over to their house for a big meal. The word 'korban' means 'sacrifice', hence in that spirit, the meat obtained from the slaughtering of animals such as cows and sheep is distributed to the poor.
To determine the beginning of the month Zulhijjah in Brunei, moon sightings at various locations in Brunei would be held at the end of the month of Zulkaedah.