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Date Calculation; The Date Calculation Menu - HP 30b - Business Professional Calculator User Manual

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8

Date Calculation

The Date Calculation Menu

The Date Calculation menu is used to calculate the number of days between two dates, or a
second date given a number of days from an initial, or final date. To open the Date
Calculation menu, press
items shown in Figure 1. Before you enter dates, verify the date is set in the format required
for your problem. Date and calendar formats may be set in the Mode menu. The range of
acceptable dates is October 15, 1582 to December 31, 9999. For more information on setting
the preferences in the Mode Menu, see the section titled, The Mode menu: Setting Preferences
in Chapter 1.
To change the value of a displayed item, key in a number or a date and press
Once you have entered all known data, press
unknown item and press
Date Calculation Example
How many days remain in the 2010 fiscal year if today's date is June 4, 2010? Assume the
fiscal year ends on October 31st, and you wish to calculate the actual number of days
(Actual).
:@
Date 1
Date 2
Days
Between
Actual/
Cal.360
Figure 1 The Menu Map for the Date Calculation Menu
:@
<
. Press
=
to calculate it.
DWN
>
or
repeatedly to scroll through the
<
>
or
repeatedly to scroll to the
I
.
Date Calculation
57

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