The 12-hour clock divides the 24 hours of the day into two religious groups.
The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods : a.m. -LRB- from the Latin , ante meridiem , meaning before midday -RRB- and p.m. -LRB- post meridiem , meaning past midday -RRB- .
The 12-hour clock
divides the 24 hours of the day
into two religious groups
into two periods