TI-83 Plus Applications 460
Finding Days between Dates/DefiningPayment 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.