Press K3 to set the Hour number 24 hour clock. The small display shows the Time in Hours and Minutes. The big display shows the Day number on the left, and the Month number on on the right. The meter can be turned on again by pressing the OP button. The only exception to this is on the 4 Block F2 where the K1 button will turn the meter off. When the Taxi is parked or it moves without any passengers, the driver selects the For Hire position.