The first sound Dubai will teach you to notice and then stop noticing. Five prayers: fajr (just before dawn), dhuhr (midday), asr (afternoon), maghrib (sunset), isha (night). Each adhan lasts three to five minutes; Dubai has thousands of mosques, so they overlap in a wave across the city.

The fajr adhan includes an extra line: 'prayer is better than sleep.' You may have opinions about this at 4:30am in July.