(12C) HP 12C: Julian Date

[Eddie W. Shore]

The Julian Date of any calendar date D can be found by:

dDYS(January 1, 2000; D) + 2451545

d represents the Delta Symbol (Δ) for ΔDYS

It is assumed it is 12:00 Universal Time.

This program should work in either D.MY and M.DY mode:

Step Key Key Code
01 1 1
02 . 48
03 0 0
04 1 1
05 2 2
06 x<>y 34
07 dDYS 43 26
08 2 2
09 4 4
10 5 5
11 1 1
12 5 5
13 4 4
14 5 5
15 + 40


Example:
February 11, 2015: Julian Date 2457065
October 9, 1995: Julian Date 2450000