In a 24-hour day, a.m. and p.m. refer to the two 12-hour periods of the day. A.m. refers to the period between 12:00 in the morning and 11:59 in the late morning, whereas p.m. refers to the period between 12:00 midday and 11:59 in the late evening.Know More
The abbreviation a.m. is derived from the Latin phrase ante meridiem, which translates to "before midday." The abbreviation p.m., also derived from Latin, stands for post meridiem, which translates to "after midday."
The time designations a.m. and p.m. are used when referring to 12-hour clocks. The 24-hour clock, which is used in the military, eliminates a.m. and p.m., instead using the numbers 0000 through 2400 to refer to hours and minutes, with the first two numbers representing hours and the last two numbers representing minutes.
The terms coordinate with the rising, setting and midday position of the sun. Before precise timekeeping came into use, people could tell the time of day based on the sun's position. For example, when the sun crosses the meridian in a specific geographic location, it is noon, otherwise known as midday, signifying the end of the a.m. period and the beginning of the p.m. period. People residing in the same time zone experience noon at the same time, but as they move through time zones, the time differs in one-hour increments.Learn more about Hours, Minutes, & Seconds
After the summer solstice, when days are at their longest, each day starts to become shorter by about one minute every three days. However, this process accelerates and decelerates slightly depending on the particular day.Full Answer >
Current A.M. Best insurance ratings can be found on the company's website or in its publication, Best's Insurance Reports, as of January 2015, explains the A.M. Best website. The A.M. Best Company is an international credit rating agency that reports on the financial strength and creditworthiness of insurance companies.Full Answer >
An M.A. is a master's degree in the arts, humanities and social sciences, while a M.Sc. is a master's degree in the sciences. A master's degree is a postgraduate degree that is usually worked for after an individual has obtained a bachelor's degree and before attempting a doctoral degree.Full Answer >
There is no specific or definitive time that afternoon becomes evening, but it gradually shifts into evening as the day goes on. It is unlike afternoon, which begins after 12 p.m.Full Answer >