Sharp AL-1661CS Operation Manual page 27

To change the display format to 12-hour or 24-hour format, follow the steps below:
1
Press the [MENU] key.
2
Press the [ ] key (
until "4:USER PROGRAM" appears,
and then press the [ENTER] key.
Selection
"4:USER PROGRAM"
3
Press the [ ] key (
until "23:DATE&TIME FORMAT"
appears, and then press the [ENTER]
key.
Selection
"23:DATE&TIME FORMAT"
4
Press the [ ] key (
until "1:TIME FORMAT" appears, and
then press the [ENTER] key.
Selection
"1:TIME FORMAT"
5
Press the [ ] key (
to select "1:12HOUR" or "2:24HOUR".
) or [ ] key ( )
) or [ ] key ( )
) or [ ] key ( )
) or [ ] key ( )
6
Press the [ENTER] key.
7
Press the [CLEAR ALL] key (
INITIAL SETTINGS
).
Press the [CLEAR ALL]
key ( ) to exit.
23
2