Leaflet produced by Yelloway introducing the 24 hour clock

In November 1964, along with the other major bus and coach companies, Yelloway introduced the 24 hour clock format for its timetables. This small leaflet outlined how times be could converted between the traditional 12 hour clock system and the 24 hour clock system. Despite this move, now 50 years ago, many British people still don't understand the 24 hour clock system!