Setting The Time And Date - HP -18C Owner's Manual

Table 8-1 describes the TIME menu keys .
Table 8·1. TIME Menu Keys
Menu Key Description
B1DI
Displays the CALC menu, which is used to calculate the num-
ber of days between two dates or the date a specified
number of days before or after a given date; also used to
determine the day of the week for any date .
...
Displays the APPT menu, used to set and view appointment
alarms.
tmII'iI
Displays the ADJST menu for adjusting the clock setting .
...
Displays the SET menu for setting the time and date; also
selects the time and date formats .
Setting the Time and Date
The SET menu is used to set the time and date and to change the time
and date formats. Table 8-2 describes the SET menu.
To set the time, from the MAIN menu:
1. Press
I11III ,
then . . to display the SET menu . Note the cur-
rent time format-ml or
P~l
after the time indicates 12-hour
format .
2. Using the current
format, key in the correct time* as a number in
the form HH.MMSS. For example 9 :08 :30 PM would be keyed in
as 9.0830 (12-hour format) or 21.0830 (24-hour format) .
3. Press
I11III .
The clock is now set to the new time.
4. For 12-hour format
only:
If
necessary, press
IiIi1II
to switch be-
tween AM and PM .
• To set the exact time from a time standard, key in an HH .MMSS value 15 to 30 seconds in
the future. Press
IIIiIII
when the two times match.
116 8: Time, Alarms, and Date Arithmetic