## How do you learn the 24-hour clock?

To convert from the 12 hour clock to the 24 hour clock is easy – you just need to add 12 to the hours in the day after midday. For example: 2 o’clock PM becomes 14:00 , as 2 + 12 = 14 .

How do you change the time between 12 hour and 24-hour clock?

Converting from 12 hour to 24 hour clock Starting from the first hour of the day (12:00 AM or midnight to 12:59 AM), subtract 12 hours: 12:00 AM = 0:00. 12:15 AM = 0:15.

In the 24-hour clock system we give the number of hours since the beginning of the day for the first two digits, and the number of minutes since the beginning of the hour for the last two digits. In this example, you have 12 hours in the morning + 3 hours in the afternoon which makes 15 since the start of the day.

### Why is 24 hour time important?

24-hour clock time is used in computers, military, public safety, and transport. In many Asian, European and Latin American countries people use it to write the time. Many European people use it in speaking.

How do you write 24-hour clock in words?

To avoid confusion between 12 a.m. and 12 p.m. , use the 24-hour system, or write out the time in words, depending on the context: For 12 a.m. , use 00:00 (or 24:00), or midnight. For 12 p.m. , use 12:00 or noon.

Who invented 24-hour day?

Hipparchus, whose work primarily took place between 147 and 127 B.C., proposed dividing the day into 24 equinoctial hours, based on the 12 hours of daylight and 12 hours of darkness observed on equinox days.

## Who invented 24 hour day?

Why is the 24 hour clock not AM or PM?

The 24 hour clock does not require the use of am or pm and the day isn’t divided into two, twelve-hour halves. The whole day is represented by a set of twenty four hours. Afternoon is indicated by a number bigger than \\ (12\\).

How do you convert 12 hour to 24 hour clock?

The time starts at 0000 and continues throughout the day up to 2359. Afternoon is indicated by a number bigger than \\ (12\\). When converting from the 12-hour clock to the 24-hour clock remember: for any time after 12.59pm, add 12 to the hours.

### How is the concept of measuring and converting time explored?

The concept of measuring and converting time is explored in the Panto House. The concepts of radius and diameter using pizza toppings in the Pizza Parlour. The pizza parlour provides a real life context to solve area and perimeter problems.