Lunar months last between 29 to 30 days depending on when the new moon is sighted.
Ramadan is the ninth month of the Islamic calendar and is observed by Muslims worldwide as a month of fasting to commemorate the first revelation of the Quran to Muhammad, according to Islamic belief.
Muslims follow a lunar calendar, and a moon-sighting methodology can lead to different countries declaring the start of Ramadan a day or two apart.
United States President Donald Trump, in his message released by the White House, said, "I send my warmest greetings to all Muslims observing the holy month of Ramazan..."
Ramadan is nearly upon us, the fasting month which culminates with the Eid al-Fitr celebration.
The Ramadan fast begins with a pre-dawn meal called "suhoor" to prepare hungry stomachs for the long day ahead.
Why Muslims fast during Ramadan?More news: EU to continue trade with Iran through 'INSTEX': EU Statement
More news: Manchester City vs. Leicester City
More news: 'Avengers: Endgame' Beats $2 Billion Box Office Record! | Avengers, Avengers: Endgame, Movies
Indonesian Muslims pray on the first night of the holy month of Ramadan at the Baiturrahman Mosque in Banda Aceh, in Aceh province, on May 5, 2019.
Many Muslims will not eat or drink water during daylight for the month.
The end of Ramadan will be marked by Eid al-Fitr, a celebration known as Feast of the Fast-Breaking.
Fasting is one of the five pillars of Islam, which also include declaration of faith, prayer, charity and pilgrimage to Mecca.
During Ramadan there is an increased offering of the salat, with Muslims giving thanks to Allah and reflecting on their lives.
"Going to Ramadan prayers in our own mosque for the first time will be a landmark occasion for Northland Muslims". During Ramadan, they are required not only to refrain from eating and drinking from dawn to dusk, but also to curb all negative emotions like anger and prove themselves to be the ideal Muslim. Fasting during Ramadan is not just about abstaining from food and drink, the real objective is to attain purity and piousness in order to be closer to Allah. Fasting is obligatory for all adult Muslims except for pregnant ladies, breastfeeding mothers, chronically ill, diabetic and menstruating ones.