... format display selectable--Stopwatch--Hourly ChimeSETTING --when a item blinking, press up key to adjust it.--to shift setting item by ... pressing SHIFT key--when adjusting HOUR, set 12/24 hour format circularly For 12 hour format, AM ... is switched on, the icon will appear --To sxit setting, press SET key LCD display clock, LCD clock, Multi-purpose LCD Clock ...