why are 24 hour clock and 12 hour clock different - Maths - Time

Question

why are 24 hour clock and 12 hour clock different

Shubham Chourasiya · Accepted Answer

The 12-hour
clock 
is a time convention in which the 24 hours of the day are divided
into two periods: a
m 
(from the Latin

ante meridiem,
meaning "before midday") and p
m 
(post
meridiem,
"after midday")

The 24-hour
clock 
is the convention of time keeping in which the day runs from midnight to midnight
and is divided into 24hour, 
indicated by the hours passed since midnight, from 0 to 23 This
system is the most commonly used time notation in the world today,
and is the international standard notation for time of day It is
popularly referred to as military
time 
or astronomical
time 
in the United States, Canada, and a handful of other countries
where the12 hour clock
is still dominant