Waking up the neighbours: Indonesia's Ramadan alarm clocks Most children are sound asleep at 2:00 am, but for at least one group of Indonesian kids it is time to wake up the neighbourhood. The motley bunch yell and bang on tambourines and other musical instruments as they roam the quiet streets of their Jakarta district, hoping to stir sleeping residents for a pre-dawn meal, known as Sahur. Millions across the world's biggest Muslim majority nation are observing a dusk-to-dawn ban on eating, drinking, smoking and sex for the holy month of Ramadan. The morning meal can be crucial to making it through until sunset.