8pm is also 20:00 hrs in terms of the clock.
8:0
0: 3
24-0= 24
20:0
0: 3
60-0= 60
You see this is the fun with math and God's matrix multiplication of time...
A day has 24*60*60 seconds...
16:03 hrs is 4:03 pm in terms of the clock .
16 : 03
12 : 06
96-36= 60
4:03
0:06
24-0= 24
Magic of time and math....