Grade 2 → Measurement and Data → Time ↓
Reading analog and digital clocks
Time is an essential part of our daily lives. Learning to read clocks is a basic skill that helps us stay organized and plan our activities. In this guide, we will explore the two types of clocks: analog and digital. By the end of this guide, you will be confident in reading both types of clocks and understanding the relationship between them.
Analog clocks: Understanding the basics
Analog clocks have been used for centuries and are characterized by their round faces and hands that move around the dial. To read an analog clock, you need to understand the position of the numbers and the significance of the clock hands.
Clock face
An analog clock is typically divided into 12 parts: |12 11 | 1 10 | 2 9 ---- | ---- 3 8 | 4 7 | 5 |6
The numbers 1 to 12 are arranged in a circle, indicating the hours of the day. The position of the numbers corresponds to specific hour intervals.
Hand watch
Usually a clock has two or three hands:
- The hour hand is small and moves slowly around the clock. It takes 12 hours to complete one full rotation.
- The minute hand is long and moves quickly, completing one full revolution every hour.
- Some clocks also have a seconds hand, which is even longer and moves at the fastest speed, completing one revolution every minute.
Reading the time
To read the time on an analog clock:
- Look at the hour hand to find the hour. When it's between two numbers, you use the smaller number. For example, if it's between 1 and 2, the hour would be 1.
- Check the minute hand. Each number represents 5 minutes. For example, if the minute hand points to 1, it is 5 minutes after the hour.
- Combine the hours and minutes to read the full time. For example, if the hour hand is at 3 and the minute hand is at 4, the time is 3:20.
Here's an example from 1:30:
Digital watches: Ease of reading the time
Digital clocks display the time in numerical format, typically using a colon to separate hours and minutes. Unlike analog clocks, digital clocks are straightforward and only require understanding numbers.
Reading a digital clock
Digital clocks show the time in four digits:
HH:MM
- HH represents the hour. It can be a number from 00 to 12 (for 12-hour format) or 00 to 23 (for 24-hour format).
- MM represents minutes and is a number from 00 to 59.
Understanding AM and PM
In the 12-hour clock format, time is divided into AM and PM:
- AM stands for "Ante Meridiem", which means before noon. It covers the time from midnight to noon.
- PM stands for "Post Meridiem", which means after noon. It covers the time from noon to midnight.
This is what it looks like on a digital clock:
03:45 PM
In this example, 03:45 PM means it is 3:45 PM right now.
Connecting analog and digital clocks
Even though analog and digital clocks look different, they tell the same time. Let's see how to convert time from analog to digital and vice versa.
Converting analog to digital
Let's say you have an analog clock showing 2 o'clock and the minute hand is pointing to 6 (30 minutes).
The digital version will be as follows:
02:30
Converting digital to analog
Suppose a digital clock displays the time 11:45 AM.
On an analog clock it will look something like this:
Practical exercises
Practice is key to mastering reading both analog and digital clocks. Here are some exercises you can try:
- Look at an analog clock and write down the time it shows in digital format.
- Check different times on a digital clock, and try marking the time on an analog clock.
- Match the card with the time written in analog and digital format.
Here's an example exercise:
Analog Clock Practice:
Digital version: What time does this clock show?
03:25
Exercises like these will help you become comfortable reading both analog and digital clocks. Being able to efficiently understand time is a valuable skill that we use every day in our lives.