Look at the throw-in times for next Sunday's club matches: 11:30, 14:00, 17:45. Three times, all written without am or pm, and the last two are bigger than 12.

Watch three 24-hour times on the clock. Each clock face is the ordinary one we already know, with the hours 1 to 12 around the edge. The digital readout below names the same moment in 24-hour form. The hands point at the numbers we recognise; only the way we WRITE the time changes.

13:00, one in the afternoon

18:30, half past six in the evening

21:15, quarter past nine at night

Notice how the hour hand sits exactly where it would sit on an ordinary clock at 1, at 6:30, at 9:15. The clock face hasn't changed; only the digital number has.

Now we turn 12-hour times into 24-hour times together. Today's set, all match-day examples: 2:45 pm, 11:20 am, 4:00 pm, 7:30 pm.

Pupils take turns at the IWB to set each one on the clock and read both forms aloud.