Hour
Contents
Key Stage 2
Meaning
Hours are a length of time the same as 60 minutes.
About Hours
Key Stage 3
Meaning
Hours are a unit of time equivalent to 60 minutes.
About Hours
- Hours may be shortened to h or hr with a lower case h and a lower case r.
- There are 24 hours in the day and 168 hours in a week.
- There are 60 minutes in an hour and 3600 seconds in an hour.
Converting to Hours
| Unit | To convert | Hours |
| 1 second (s) | Convert to hours /60 /60 | 1/3600th of an hour. |
| 1 minute (min) | Convert to minutes x60 | 1/60th of an hour |
| 1 hour (hr) | Convert to hours x1 | 1hr |
| 1 day | Convert to hours x24 | 24hr |
| 1 week | Convert to hours x24x7 | 168hr |
| 1 year | Convert to hours x24x365.25 | 8766hr |
Key Stage 4
Meaning
Hours are a unit of time that are 3600 times larger than the SI Unit of time; the second.
About Hours
- Hours may be shortened to h or hr with a lower case h and a lower case r.
- Scientists don't generally use hours. However they are used by the general public when thinking about journey times between cities.
- Hours are used when calculating speed in miles per hour.
- There are 24 hours in the day and 168 hours in a week.
- There are 60 minutes in an hour and 3600 seconds in an hour.
Converting to Hours
| Unit | To convert | Hours |
| 1 second (s) | Convert to hours /60 /60 | 1/3600th of an hour. |
| 1 minute (min) | Convert to minutes x60 | 1/60th of an hour |
| 1 hour (hr) | Convert to hours x1 | 1hr |
| 1 day | Convert to hours x24 | 24hr |
| 1 week | Convert to hours x24x7 | 168hr |
| 1 year | Convert to hours x24x365.25 | 8766hr |