24 Hour Clock Conversion
Worksheets

In the 24 hour clock, there are no 'am' and 'pm' labels.

The hours start at zero and go throught to 23.

All 24 hour clock times should be written hh:mm or hh:mm:ss, where h is the hour, m is the minute and s is the seconds.

Sometimes the colons are omitted bewteen the hours and minutes.

These sheets have been split into 3 sections.

The first set of sheets involve converting am and pm times into 24 clock times.

The second set of sheets involve converting 24 hour clock times to 12 hour standard time.

The last set of sheets involve both converting between 12 and 24 hour times and back.

Using these sheets will help your child to:

• convert 12 hour standard times to 24 hour clock times;
• convert 24 hour clock times to 12 hour standard times;
• read from an analogue accurately at 5 minute intervals;
• draw clock hands in the correct place for 5 minute intervals.

Here you will find our selection of harder time puzzles.

The sheets in this section involve telling the time accurately to 1 minute intervals.

The sheets also include converting 24 hour to 12 hour clock and back.

Each time problem consists of some clues and 8 possible answers, of which only one is correct.

On this page, you will find our military time converter for converting time to and from 24 hour clock.

The converter will convert standard 12 hour times to 24 hour time and also convert 24 hour time to 12 hour standard time.

Looking for an extension activity for children who can already tell the time?

Maybe you want an interesting starter activity for your lesson to get the class thinking?

These printable time puzzles will help to get your child thinking about time and solving problems involving time.

They are good at developing an understanding of the language used in time.

Here you will find our selection of telling time clock worksheets to help your child learn their o'clock, half-past, quarter past and to.

Using these sheets will help your child to:

• read o'clock, half-past times;
• read quarter past and quarter to;
• tell the time to the nearest minute;
• convert analogue times to digital;

The sheets in this section are a great way of starting your child off with learning to tell the time.

These sheets will help you learn to add and subtract hours and minutes from times as well as working out a range of time intervals.

There are also sheets to help you practice adding and subtracting time intervals.

Do you want to know exactly how old you are to the nearest minute?

Have you been alive for more than a billion seconds?

Do you know how many days old you are?

Our online age calculator will tell you all you need to know...

The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources.

We welcome any comments about our site or worksheets on the Facebook comments box at the bottom of every page.