In KS2 Maths children in Year Three will be expected to understand the time units of seconds, minutes, hours, days, weeks, months and years. They should know that there are 60 seconds in a minute, 60 minutes in an hour and 12 months in a year. They should also have an understanding of which unit of time to use in different circumstances, such as minutes to eat a meal or hours to make a long journey. They may also be able to tell the time on both digital and analogue clocks.

The measurement of time isn’t just in seconds, minutes, hours and days - it's also in years and millennia. We measure time with clocks, watches and calendars. There are two types of clocks - analogue and digital. Being able to read the time in both formats is essential.

Do you know how many days are in a week, how many months in a year or how many years in a decade? Take this test and find out what you know about time.