2.Key in the second date and press «.

3.Press ¬, -, or ®to calculate the number of days 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:

Display:

Description:

 

 

 

 

Displays CALC menu.

Y

 

E

 

"

4.202003

 

"

Stores Apr. 20, 2003

 

 

 

as first date and

ª

 

 

A1:H#8"

 

 

 

 

(+?$(?$((% F4<"

displays its day of the

 

 

 

 

 

week.

8.022040

 

"

Stores Aug. 2, 2040 as

 

 

 

second date.

«

 

 

A1:H$"

 

 

 

 

8(*?($?$(+( :M4"

 

 

 

17:419 A1@F8"

Calculates actual

¬

 

 

 

 

 

 

#%K'#,&(("

number of intervening

 

 

 

 

 

days.

®%'. A1@F8#%K'(,&((" Calculates number of intervening days by a 365-day calendar.

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 ¯) and press

ª.

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

File name : 17BII-Plus-Manual-E-PRINT-030709

Print data : 2003/7/11