Here are two clocks.
One has normal numbers. One has Roman Numerals.
They both show the same time.
The long blue hand is pointing to the 3 or III, which is a quarter way round, so the time will be something 15 or a quarter past.
The short red hand is pointing to between the 5 and the 6 or the V and the VI, so the time is:
5:15
or a quarter past 5.
Here are another two clocks.
One has normal numbers. One has Roman Numerals.
They both show the same time.
The long blue hand is pointing to the 9 or IX, which is three-quarters the way round, so the time will be something 45 or a quarter to the next hour.
The short red hand is pointing to between the 3 and the 4 or the III and the IV, so the time is:
3:45
or a quarter to 4.