HP 17bII+ - Manual (Page 150)

150 11: Time, Appointments, and Date Arithmetic
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
Table 11-4. CALC Menu Labels for Date Arithmetic
Menu
Label
Description


Stores or calculates a date. Also displays the day of
the week. If you omit the year, the calculator uses the
current year.
 Stores or calculates the number of actual days
between DATE1 and DATE2 , recognizing leap years.
 Calculates the number of days between DATE1 and
DATE2 using the 360-day calendar (30-day months).
 Calculates the number of days between DATE1 and
DATE2, using the 365-day calendar, ignoring leap
years.
 A shortcut: recalls the current date, which can then be
stored in DATE1 or DATE2.
The calculator retains the values for the TIME CALC variables DATE1,
DATE2, DAYS until you clear them by pressing
@c while the
CALC menu is displayed.
To see what value is currently stored in a variable, press
R menu
label .
Determining the Day of the Week for Any Date
To find the day of the week for any date, key in the date and press
 or  .
Calculating the Number of Days between Dates
To calculate the number of days between two dates:
1. Key in the first date (for today’s date, use
 ) and press  .