ante meridiem การใช้

• A : A . M . is the abbreviation of the Latin ante meridiem, " before noon or midday, " and not ante meridian, even though meridian means noon.
• The same Latin stem gives rise to the terms a . m . ( ante meridiem ) and p . m . ( post meridiem ) used to disambiguate hours of the day when utilizing the 12-hour clock.
• The term should not be confused with " fore noon " ( two separate words ), which is a translation of the Latin word " ante meridiem " ( a . m . ), meaning a time between 12 : 00 midnight and 12 : 00 midday.