Casio 5445 User guide

Firstly, make sure it is in the Timekeeping Mode.
DST Setting Module : 5445/5525
ADJ
1.
NYC
SET
2.
<Timekeeping Mode Screen>
To return to the Timekeeping Mode
from any other mode, hold down (C)
button for at least four seconds.
In the Timekeeping Mode, hold down
(A) button for two seconds until ADJ
appears in the right digital dial.
City code and city name
"SET" will start to flash in the left digital dial.
The city code and city name will scroll
across the right digital dial.

9:10 ON
5.
9:10 ON
8:10 OFF
8:10 OFF
3.
Press (C) button once.
Current DST setting will appear.
4.
Press (D) button to toggle ON and OFF.
Press (A) button to return to
the Timekeeping Mode.
DST indicator