Casio 5078 User Manual page 13

4. When the setting you want to change is flashing, use B and D to change it as
described below.
Screen To do this:
Reset the seconds to
Toggle between Daylight Saving Time (
Standard Time ( )
Change the Home City code
Change the hour or minutes
Toggle between 12-hour (
( 24H
Change the year
Change the month or day
Select one second ( ) or three seconds ( )
as the illumination duration
E-12
00
) timekeeping
) and
) and 24-hour
12H
Do this:
Press D.
Press D.
Use D (east) and B (west).
Use D (+) and B (–).
Press D.
Use D (+) and B (–).
Press D.