Techno Line WT268 Instruction Manual page 25

inside concrete buildings
near electrical appliances (computers, TV's, etc) and metallic
structures
inside moving vehicles
Place the clock at a location with optimal signal, i.e. close to a window
and away from metal surfaces or electrical appliances.
Under standard status, press SET to switch 24HR/D/M and
12HR/M/D
Under standard status, hold SET to enter into time setting:
Time setting sequence: Year → month → date → language
choice → timezone → hour → minute → DST on/off → exit