Determining The Day Of The Week For Any Date; Calculating The Number Of Days Between Dates - HP 17bll+ User Manual

Table 11-4. CALC Menu Labels for Date Arithmetic
Menu
Label
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
CALC menu is displayed.
To see what value is currently stored in a variable, press
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
150 11: Time, Appointments, and Date Arithmetic
.
Description
@c
 ) and press
while the
menu
R
 .