# Time 1

In this article, we are going to learn about Time. The learning objectives are:

- Telling time to the minute
- Converting time

**Topic Recap:**

**Telling Time To 5 minutes**

A clock is used to tell the time.

The units for measuring time are hour (h) and minute (min).

Each number on a clock represents an interval of five minutes.

**Topic Recap:**

**Use Of am & pm**

‘**am**’ is used to refer to timings before noon/in the morning.

‘**pm**’ is used to refer to timings in the afternoon and/or night.

**Example: **

Fill in the blanks with either am or pm.

- Ricardo eats his breakfast at 8:30 __________.
- Shirley likes to go for an early morning jog at 7:00 __________.
- After dinner, Melissa watches her favourite cartoon at 8:00 __________.

**Answer: **

- Ricardo eats his breakfast at 8:30 am.
- Shirley likes to go for an early morning jog at 7:00 am.
- After dinner, Melissa watches her favourite cartoon at 8:00 pm.

**Question 1:**

The clock below shows the time Jason wakes up every morning.

What time does Jason wake up every morning?

- 6:45 am
- 7:45 pm
- 9:35 am
- 6:45 pm

**Solution:**

The hour hand is between 6 and 7. This means that the time is after 6 o’clock. The minute hand is pointing to 9. This means that the time is 6:45.

6:45 in the morning is 6:45 am.

**Answer:**

(1) 6:45 am

**Question 2: **

The clock below shows the time when Mrs Lee started making dinner.

What time did Mrs Lee start preparing dinner?

- 5.15 am
- 5:15 am
- 5:15 pm
- 6:15 pm

**Solution:**

The hour hand is between 5 and 6. This means that the time is after 5 o’clock. The minute hand is pointing to 3. This means that the time is 5:15.

5:15 in the afternoon is 5:15 pm.

**Answer:**

(3) 5.15 pm

**1. Telling Time To The Minute**

Every number on the clock represents a time interval of 5 minutes.

Every line in between the numbers represents a time interval of 1 minute.

The time on this clock will be 11:36.

Follow the clock below.

Follow the clock below.

**Question 1:**

Look at the picture below.

Hannah is doing her homework at __________ pm.

- 3:49
- 4:49
- 4:50
- 5:49

**Answer:**

(2) 4:49

**Question 2:**

Look at the picture below.

The performance ended at __________ pm.

- 7:22
- 7:23
- 8:22
- 8:23

**Answer:**

(3) 8:22

**Question 3:**

The clock below shows the time Mary had her breakfast.

What time did Mary have her breakfast?

- 7:13 am
- 7:14 am
- 7:15 am
- 7:23 am

**Answer:**

(1) 7:13 am

**2. Converting Time**

To convert hours and minutes to minutes,

we need to remember that there are 60 minutes in 1 hour.

For example,

- \(1 \text{ h } = 60 \text{ min }\)
- \(2 \text{ h } = 120 \text{ min }\)
- \(\begin{align}\\ 1 \text{ h } 20 \text{ min } &= 60 \text{ min } + 20 \text{ min } \\ &=80 \text{ min } \end{align}\)

**Question 1: **

Kenny took \(2 \text{ h } 25 \text{ min }\) to reach the airport by train. How long did Kenny take to reach the airport in minutes?

**Solution:**

Break \(2 \text{ h } 25 \text{ min }\) into hours and minutes.

\(\begin{align} 2 \text{ h } 25 \text{ min } &= 2 \text{ h } + 25 \text{ min } \\[2ex] &= 120 \text{ min } + 25 \text{ min } \\[2ex] &= 145 \text{ min } \end{align}\)

**Answer:**

\(145\text{ min }\)

**Question 2:**

Write the following in minutes.

- 60 minutes
- 180 minutes
- 240 minutes
- 300 minutes

**Solution:**

**\(\begin{align} 5 \text{ h } &= 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 1 \text{ h } \\[2ex] &= 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 60 \text{ min }\\[2ex] &= 300 \text{ min } \end{align} \)**

**Answer:**

(4) 300 minutes

**Question 3:**

Write the following in minutes.

- 50 minutes
- 60 minutes
- 100 minutes
- 110 minutes

**Solution:**

**\(\begin{align} 1 \text{ h } 50 \text{ min } &= 60 \text{ min } + 50 \text{ min } \\[2ex] &= 110 \text{ min } \end{align}\)**

**Answer:**

(4) 110 minutes

**Question 4:**

Write the following in minutes.

- 240 minutes
- 245 minutes
- 285 minutes
- 295 minutes

**Solution:**

**\(\begin{align} 4 \text{ h } 45 \text{ min } &= 4 \text{ h } + 45 \text{ min } \\[2ex] &= 240 \text{ min } + 45 \text{ min }\\[2ex] &= 285 \text{ min } \end{align}\)**

**Answer:**

(3) 285 minutes

**Question 5:**

The movie ‘Musical Return of Gitan’ lasted for \(140 \text{ min}\). How long was the movie in hours and minutes?

**Solution:**

Break \(140 \text{ min}\) into hours and minutes.

\(\begin{align} 140 \text{ min } &= 120 \text{ min }+ 20 \text{ min } \\[2ex] &= 2 \text{ h }+ 20 \text{ min } \\[2ex] &= 2 \text{ h } 20 \text{ min } \end{align}\)

**Answer:**

2 h 20 min

**Question 6:**

Look at the following.

- 1 h
- 1 h 2 min
- 1 h 12 min
- 1 h 20 min

**Solution:**

**\(\begin{align} 62 \text{ min } &= 60 \text{ min }+ 2 \text{ min }\\[2ex] &= 1 \text{ h } + 2 \text{ min }\\[2ex] &= 1 \text{ h } 2 \text{ min } \end{align} \)**

**Answer:**

(2) 1 h 2 min

**Question 7:**

Write in hours and minutes.

- 2 h 5 min
- 3h 5 min
- 3 h 15 min
- 4 h 25 min

**Solution:**

Break \(185 \text{ min}\) into hours and minutes.

\(\begin{align} 185 \text{ min } &= 60 \text{ min }+ 60 \text{ min }+ 60 \text{ min }+ 5 \text{ min }\\[2ex] &= 1 \text{ h }+ 1 \text{ h }+ 1 \text{ h }+ 5 \text{ min } \\[2ex] &= 3 \text{ h }+ 5 \text{ min }\\[2ex] &= 3 \text{ h } 5 \text{ min } \end{align} \)

**Answer:**

(2) 3 h 5 min

**Question 8:**

Write in hours and minutes.

- 6 h 45 min
- 6 h 55 min
- 7 h 45 min
- 7 h 55 min

**Solution:**

Break \(475 \text{ min}\) into hours and minutes.

\(\begin{align} 475 \text{ min } &= 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 60 \text{ min } + 55 \text{ min } \\[2ex] &= 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 1 \text{ h } + 55 \text{ min }\\[2ex] &= 7 \text{ h } + 55 \text{ min }\\[2ex] &= 7 \text{ h } 55 \text{ min } \end{align}\)

**Answer:**

(4) 7 h 55 min

In this article, we have learnt about Time:

- Telling time to the minute
- Converting time