User Manual - Page 463

For 83PL/TBL/1L1/A.

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TI-83 Plus Applications 460
Finding Days between Dates/Defining
Payment Method
dbd(
Use the date function
dbd(
(menu item
D
) to calculate the number of days
between two dates using the actual-day-count method.
date1
and
date2
can be numbers or lists of numbers within the range of the dates on the
standard calendar.
Note: Dates must be between the years 1950 through 2049.
dbd(
date1
,
date2
)
You can enter
date1
and
date2
in either of two formats.
MM.DDYY (United States)
DDMM.YY (Europe)
The decimal placement differentiates the date formats.
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