Welted definition, a ridge or wale on the surface of the body, as from a blow of a stick or whip. See more.
AM stands for âante meridiemâ, which means âbefore noonâ in Latin, while PM stands for âpost meridiemâ, which means âafter noonâ in Latin. 12-Hour Periods. Most clocks today are 12-hour clocks â they divide the 24 hours in a day into two 12-hour periods.
The mainstream opinion is that a.m.=ante meridiem and p.m.=post meridiem. We can see clearly in GMT: Greenwich Mean Time. It says that 12:00am means 12:00 noon, and 12:00pm means 12:00 midnight. GMT: Greenwich Mean Time-World Time / Time in every Time Zone. Greenwich Mean Time (GMT).t says that 12:00am means 12:00 noon, and 12:00pm means 12:00 midnight. GMT: Greenwich Mean Time-World Time / Time in every Time Zone.