Saudi Arabia and other Muslim-majority nations, like Egypt and Indonesia, declared Ramadan would begin Thursday based on a moon-sighting methodology.
The start date is set by both lunar calculations and physical sightings which determine when the last day of one lunar month ends and a new one begins.
Ramadan 2018 Date: The new moon of the month of Ramadan will be sighted this evening corresponding to 29th of Shaban in the country. Official decision by Central Moon Sighting Committee Pakistan, Religious Affairs Ministry Bangaldesh and Central Moon Sighting Committee New Delhi is expected soon after Salate Maghrib Wednesday evening.
The UAE's Ministry of Human Resources and Emiratisation said on Tuesday that private sector establishments, institutions and companies would have to reduce normal work by two hours for the holy month.
"During this Holy month, I advise all Nigerian Muslims and Christians to eat together, feed the needy and pray for our beloved country".
At the end of Ramadan, Muslims traditionally celebrate the Eid al-Fitr holiday with candies, gifts for children, charitable donations and social events.
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She said: 'It allowed us to agree on a common set of lines of actions and measures to put in place on which we will start working tomorrow'.
On the occasion of Ramadan, Muslims fast from dawn to dusk as it is considered a holy period.
"With the rising of tonight's moon, I send my greetings and best wishes to all Muslims observing Ramazan in the United States and around the world", he said in the statement.
"Let's just be united so that the blessings of the Almighty will come to us especially during the fasting season in the month of Ramadan...let's not do anything Allah dislikes, let's be careful of our actions, words and way of life", Macarimbor said. During this period the Muslims observe fasting from sunrise to sunset.
Eid al-Fitr, which means "festival of breaking the fast", marks the end of the month of Ramadan.
Meanwhile, special preparations are also on in the Muslim world for Salate Taraveeh - the special night prayers offered in the month of Ramadan besides daily prayers five times in a day.