Unit Conversions (Time)

In a Nutshell

Time does not follow powers of 10. Learn the key facts: 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day.

Unlike the metric system, time uses different conversion factors:

1 minute=60 seconds1 \text{ minute} = 60 \text{ seconds}
1 hour=60 minutes=3600 seconds1 \text{ hour} = 60 \text{ minutes} = 3600 \text{ seconds}
1 day=24 hours1 \text{ day} = 24 \text{ hours}
1 week=7 days1 \text{ week} = 7 \text{ days}

The same rule applies: to go from a larger unit to a smaller unit, multiply. To go from a smaller unit to a larger unit, divide.

Be careful with remainders. For example, 130 minutes is not 2.1667 hours in everyday language; it is 2 hours and 10 minutes.

Unit conversion: hours to minutes A slider showing 3 hours equals 180 minutes. The conversion factor is 60. hours 12 hours 3 hours minutes 720 minutes 180 minutes

The slider converts hours to minutes. Try entering different values.

Watch it work

Question: Convert 195 minutes to hours and minutes.

Have a go

Q1. Convert 3 hours to minutes.

Q2. Convert 240 seconds to minutes.

Q3. A film lasts 2 hours and 25 minutes. How many minutes is that in total?

Q4. Convert 4500 seconds to hours and minutes.

Q5. How many seconds are there in 2.5 hours?