Go to the room 'The Ahmad Ibn Tulun Mosque' which is in the southeast area of Cairo, or you can HUNT MUEZZIN.
There are five important moments in the day when good Muslims must pray, according to the teachings of the Prophet.
Fajr, at dawn - 6am
Dhuhr, after true noon - 12pm
Asr is when the shadow of an object becomes twice its height - ?? (doesn't seem to currently happen)
Maghrib, at sunset - 5pm
Isha'a is the last time of the day to perform salat, just before midnight - 9pm
The muezzin will say the prayers at each time of the day, and will give you his blessing for respecting his traditions.