How do I set the time and switch between 12-hour and 24-hour clock on the A36?

Press and hold the Time Setting button for 3 seconds to unlock the screen and enter time setting mode, where the hour and minute digits will blink. Use the Hours and Minutes buttons to set the desired time, then hold the Time Setting button for 3 seconds to exit. To switch between 12-hour and 24-hour clock, press the Time Setting button and Minutes button simultaneously. (Page 6)