Re: Date Conversion

I think this is because the *LONGJUL format is YYYYDDD, where the DDD part is the day number, from 1 to 366. So, Jan 02, 2012 converts to 2012002. Subtract three from that and you end up with 2011999, which is an invalid date.

Date math in CL is tough. Scott wrote an article some years ago about using APIs. Another option is to call an RPG program, since dates in RPG are really easy.

Here's Scott's article (although the code formatting isn't very good):

http://www.systeminetwork.com/article/rpg-programming/date-math-in-cl-61339

Joe

Hi Folks,

I converted the system date to jul with this cmd;

CVTDAT DATE(&SYSDAT) TOVAR(&CURJUL) FROMFMT(*MDY) TOFMT(*LONGJUL) TOSEP(*NONE) and the joblog shows this;
CVTDAT DATE('010212') TOVAR(&CURJUL) FROMFMT(*MDY) TOFMT(*LONGJUL) TOSEP(*NONE)

Then, I minus 3 days from the above date (-3) and then try to CVTDAT back to *YYMD but when I try to convert back to *YYMD the joblog shows;

CVTDAT DATE('2011999') TOVAR(&PRVDAT#) FROMFMT(*LONGJUL) TOFMT(*YYMD) TOSEP(*NONE) and I get CPF0555.

Why does the -3 convert to 2011999 and how can I correct the date conversions?

Thanks, Frank