Date, time and fiactian aritlimetic, Calculating with dates, Calculating with times -3 – HP 48g Graphing Calculator User Manual
Page 193
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
16
Date, Time and Fiactian Aritlimetic
The HP 48 has a sophisticated built-in clock and calendar. The HP 48
uses the Gregorian calendar which reformed the Julian calendar on
October 15, 1582 CE. Dates prior to that (or after December 31, 9999)
are not valid.
16
Calculating with Dates
The TIME command menu contains special commands that allow you
to calculate calendar and clock intervals.
The following table illustrates the time and date formats available on
the HP 48. The time and date illustrated is 4:31
P M
on February 21,
1992.
Clock Display
Format
Number Form
Date:
02.•■ ''21 1992
2 1 , 0 2 • 1 9 9 2
Month/day/year format
Day.month.year format
2 = 2 1 1 9 9 2
2 i . 0 2 1 9 9 2
Time:
0 4 ; 3 G 0 4 P
1 6 : 3 1 s 0 4
12-hour format
24-hour format
1 6 . 3 1 0 4
1 6 . 3 1 0 4
1. Press [?RiTiMr)m UK .
2. Press o® to highlight the date format field.
3. Press until the desired date format is displayed
4. Press OK to confirm the selection.
Date, Time and Fraction Arithmetic 16-1