Telling the Time.

At Maths time I was learning to tell the time on a clock or a watch or a phone or on the ipad.   On this clock here, the big hand is on the 12, and the little hand is on the 4.  This means it is 4 o'clock.  If I change the little hand and it points to 5 then it would 5 o'clock.  It is tricky to learn the time.