Topic Details (Notes format)

AM and PM Explained

Subject: Static GK (General Knowledge)

Book: General Time Knowledge

AM stands for “ante meridiem,” which translates to “before midday,” and PM stands for “post meridiem,” meaning “after midday.” This 12-hour clock convention divides the day into two blocks of 12 hours each, starting from midnight (12 AM) to noon (12 PM), then noon to midnight again. While many countries have shifted to a 24-hour standard, the AM/PM system remains deeply ingrained in daily life across North America and elsewhere. People often seek clarity on proper usage, especially regarding the confusing nature of midnight and noon. Understanding AM/PM can reduce scheduling errors and align your daily activities more reliably.

Practice Questions

Which is the largest of the Great Lakes in North America by surface area?

View Question

Which pharaoh built the Bent Pyramid and the Red Pyramid at Dahshur?

View Question

Who discovered the alpha helix in proteins?

View Question

Which element has the chemical symbol "Dy"?

View Question

In which English city is the Bullring shopping center and a famous industrial heritage?

View Question

Which of the following is the longest river in the world?

View Question

Which element has the chemical symbol "Cr"?

View Question

Which element has the chemical symbol "N"?

View Question

Which mathematician discovered the ‘Eureka’ moment about buoyancy while in a bathtub?

View Question

Which chemical is commonly added to table salt to prevent iodine deficiency?

View Question