Calculating Past Or Future Dates - HP 17bll+ User Manual

2. Key in the second date and press
3. Press
 ,
using that calendar.
Example: Calculating the Number of Days between Two Dates. Find
the number of days between April 20, 2003 and August 2, 2040, using
both the actual calendar and the 365-day calendar. Assume the date
format is month/day/year.
Keys:
 
4.202003

8.022040




Calculating Past or Future Dates

To calculate a date a specified number of days from another date:
1. Key in the known date (for today's date, use

.
2. Key in the number of days. This number should be negative if the
unknown date precedes the known date. Press
11: Time, Appointments, and Date Arithmetic 151
 , or 
Display:



 


 
 

  Calculates number of
 .
to calculate the number of days
Description:
Displays CALC menu.
Stores Apr. 20, 2003
as first date and
displays its day of the
week.
Stores Aug. 2, 2040 as
second date.
Calculates actual
number of intervening
days.
intervening days by a
365-day calendar.


) and press
.