RE: 00:00:00 or 24:00:00

Hey Vern - looks to me like your first comparison agreed with me...
2007-11-28 00:00 is less than 2007-11-29 00:00, and the second one
makes sense as well, because the date part is different. Sounds counter
intuitive,
but it isn't really. ;)

The difference between the second comparison though, will probably be zero.

I'll code an RPG test later today if nobody else beats me to it. ;)

-Paul

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-
bounces@xxxxxxxxxxxx] On Behalf Of Vernon Hamberg
Sent: Wednesday, November 28, 2007 7:52 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: 00:00:00 or 24:00:00

Hi Paul

We all know what assume does! See my previous post for an interesting
result in SQL. That application does NOT think that 01 Jan 2000 24:00
is really the same as 02 Jan 2000 00:00

Curiouser and curiouser!

Vern

At 07:23 AM 11/28/2007, you wrote:

24:00 implies duration, meaning midnight at the end of the day. 00:00
implies no duration, meaning
midnight at the beginning of the day.

So your assumption that 01 Jan 2000 24:00 is really the same as 02

Jan 2000

00:00 is correct.
And the standard says they are the same. :) I don't believe that 01

Jan

2000 00:00 and 01 Jan 2000 24:00
will compare to be equal, though it would be cool if someone had time

to

test it.

-Paul

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-
bounces@xxxxxxxxxxxx] On Behalf Of Peter.Colpaert@xxxxxxxxx
Sent: Wednesday, November 28, 2007 3:24 AM
To: rpg400-l@xxxxxxxxxxxx
Subject: 00:00:00 or 24:00:00

Hi group,

we're having a bit of a discussion here regarding time.

One of our processes involves parsing a directory listing of a

windows

shared drive, and there are 6 files which cause problems.

These files have an entry in the listing as follows:

01/01/2000 12:00a 438,082 GN0229084.JPG

The listing is parsed by two different programs (one made by me,

the

other
made several years ago by another developer).

His program (using pre-bif methods) returns the time as 00:00:00,
whereas
mine (using the %time built-in function) returns 24:00:00

First of all, I'd like to know whether January 1, 2000 00:00:00 is

the

same as January 1, 2000 24:00:00 (I would think that the latter
actually
means January 2).

Second, which one is correct?

Considering that the listing is using *USA time notation, I'm

hoping

you
guys from across the pond can point me in the right direction.

My suggestion to my project leader is to manually update the

timestamp

to
1 minute past midnight, and avoid the discussion altogether (what

are

the
chances of new documents having a timestamp of midnight anyway)

Thanks in advance,

Peter Colpaert
Application Developer
PLI - IT - Kontich, Belgium
-----
Yoda of Borg are we. Futile is resistance, assimilated will you

be.

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