12-hour clock

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/12-hour-clock

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What does 12 p.m. mean on a 12‑hour clock?12 p.m. means noon, the middle of the day. It is the exact time when the sun is at its highest point.
2. When does the 12‑hour clock start counting the afternoon?The afternoon starts at 12:00 p.m. and continues to 11:59 p.m. Each hour after noon is labeled 1 p.m., 2 p.m., and so on.

Ante Meridiem (a.m.): Latin for 'before midday', denoting the period from midnight (12 a.m.) to noon (11:59 a.m.).
Post Meridiem (p.m.): Latin for 'after midday', denoting the period from noon (12 p.m.) to midnight (11:59 p.m.).
Noon: The solar midpoint of the day, precisely 12:00 p.m. in the 12-hour system.
Midnight: The transition point between days, precisely 12:00 a.m. in the 12-hour system.