Clocks have an hour hand and a minute hand (and sometimes a second hand)
The time shown is 6:30 or 6.30 or half past 6
a.m. times are before noon.
p.m. times are after noon.
At 6.30 a.m. many of us are still asleep.
At 6.30 p.m. many of us will be having supper.
Want to understand this further and learn how this links to other topics in maths?
Why not watch this video?