Skill: Convert units of time

Explanation and Free Practice Resources

Time-unit conversion involves interpreting equivalent durations across seconds, minutes, hours, days, and weeks using fixed relationships: 60 seconds per minute, 60 minutes per hour, 24 hours per day, and 7 days per week. Quantities may be represented as whole numbers, fractions, decimals, or mixed units, with the numerical value changing inversely with the size of the unit; calendar-specific variations, such as leap years, and more generalized dimensional-analysis treatments are outside this scope.

Detailed Explanation: Convert units of time

To convert units of time, use the relationship between the units:

  • 11 minute =60= 60 seconds
  • 11 hour =60= 60 minutes
  • 11 day =24= 24 hours
  • 11 week =7= 7 days

When changing to a smaller unit, multiply. When changing to a larger unit, divide.

Example: Convert 33 hours to minutes.

Since minutes are smaller than hours, multiply by 6060:

3 hours×60 minutes1 hour3\text{ hours}\times \frac{60\text{ minutes}}{1\text{ hour}}

The hours cancel, leaving minutes:

3×60=1803\times 60=180

Therefore,

3 hours=180 minutes\boxed{3\text{ hours}=180\text{ minutes}}

Learn by doing: Convert units of time

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Measurement Conversion - Time Units with Decimals


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