The official day for the end of Ramadan was Sunday but the new moon was not visible.
The holy month of Ramadan is when Muslims abstain from eating and drinking during daylight hours.
The month is either 29 or 30 days long, depending on when the moon can first be spotted with the naked eye.
The celebration of Eid – the festival to mark the end of Ramadan – will be celebrated with prayer, gifts and feasting.
Federation of Islamic Associations president Dr Anwar Ghani said the lunar no-show would be welcomed by Muslims as it will mean that the month will continue.