Siemens Gigaset A 200 Manual page 16

Time functions
Display mode (24-hour or 12-hour display)
[_______________]
MENU
[__________] [______________________________________________] [__________]
BASE SET
[______________________________________________] [__________]
DATE/TIME
[__________] [______________________________________________] [__________]
CLOCK MODE
either ...
[__________] [______________________________________________] [__________]
12 H
or ...
[______________________________________________] [__________]
24 H
14
Press display key to open menu.
Select and confirm.
OK
Confirm.
OK
Select and confirm.
OK
Select 12-hour display:
Select and confirm.
OK
Select 24-hour display:
Confirm.
OK
Long press (return to idle status).