Great job, you have decided to spend some time practising for the SATs Maths test.

This activity will help you to learn how to read timetables using the 12-hour format.

**What is the 12-hour format?**

The 12-hour clock runs from 1am to 12 noon and then from 1pm to midnight.

The timetable below, which shows when The Tower of London is open uses the 12-hour format.

**Example**

Use the timetable to answer this question:

How long is the Tower of London open for on Tuesdays?

Count on from 10 am to 7:30 pm. A number line like this can help you to make jumps.

Answer = Add together the total number of hours counted on.

Answer = 9 hours and 30 minutes

Over to you now to have a go at answering some practice questions!