Why 5 Times a Day?

Muslims in Brunei as do Muslims throughout the world pray five times a day - Subuh (Dawn Prayer), Zuhur (Noon Prayer), Asar (Afternoon Prayer), Maghrib (Sunset Prayer) and Isyak (Evening Prayer). Each prayer has different rakaats. If you are a Muslim, you would know that Nabi Muhammad SAW received the divine command for all Muslims to perform the five-time daily prayers during Israk Mikraj but