- Metric Units of Measurement
- Home
- Choosing Metric Measurement Units
- Measuring Length to the Nearest Centimeter
- Measuring Length to the Nearest Millimeter
- Metric Distance Conversion with Whole Number Values
- Metric Mass or Capacity Conversion with Whole Number Values
- Metric Distance Conversion with Decimal Values
- Metric Conversion with Decimal Values: Two-Step Problem
- Time Unit Conversion with Whole Number Values
- Introduction to Adding Time
- Introduction to Elapsed Time
- Converting between Metric and U.S. Customary Unit Systems

- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who

The basic metric unit for time is a second. Other metric units for time are minutes, hours, days and so on. These units of time are same as the US customary units of time.

In this lesson, we solve problems on addition among various metric units for time.

The table below helps in conversion among various metric units for time.

Add the following times in hours and minutes.

4 hours 15 minutes + 2 hours 20 minutes =_________

**Step 1:**

We know that 1 hour = 60 minutes

Adding the given times

4 hours 15 minutes + 2 hours 20 minutes =

4 hours + 2 hours + 15 minutes + 20 minutes =

6 hours + 35 minutes = 6 hours 35 minutes

**Step 2:**

So, the sum is = 6 hours 35 minutes

Add the following times in hours and minutes.

1 hour 30 minutes + 5 hours 35 minutes =_________

**Step 1:**

We know that 1 hour = 60 minutes

Adding the given times

1 hour 30 minutes + 5 hours 35 minutes =

1 hours + 5 hours + 30 minutes + 35 minutes =

6 hours + 65 minutes =

6 hours + 1 hour + 5 minutes = 7 hours 5 minutes

(as 60 minutes = 1 hour)

**Step 2:**

So, the sum is = 7 hours 5 minutes

Add the following times in hours and minutes.

7 hours 20 minutes + 3 hours 50 minutes =_________

**Step 1:**

We know that 1 hour = 60 minutes

Adding the given times

7 hours 20 minutes + 3 hours 50 minutes =

7 hours + 3 hours + 20 minutes + 50 minutes =

10 hours + 70 minutes =

10 hours + 1 hour + 10 minutes = 11 hours 10 minutes

(as 60 minutes = 1 hour)

**Step 2:**

So, the sum is = 11 hours 10 minutes

Advertisements