Y2.1K Compliance

I'm spending way too much time on this. <g>  I prompted the CVTDAT command:

Help on FROMFMT:
*CYMD
    The date has the century, year, month, day format, cyymmdd,
    where c is 0 for years 1940 through 1999 and is 1 for years
    2000 through 2039.


Help on TOFMT:
*CYMD
    The date format is converted to the century, year, month,
    day format, cyymmdd, where c is 0 for years 1940 through
    1999 and is 1 for years 2000 through 2071. If the year in
    the current format is only 2 digits, c will be set to 0 for
    years 40 through 99 and to 1 for years 00 through 39.


It seems to me that the FROMFMT parameter should be able to handle the century
digit being 0 through 9 and the 2-digit year for *CYMD being 00 through 99.
But I just tested this, and IBM's documentation on the help is right on.

Whatever.

Dan Bale
IT - AS/400
Handleman Company
248-362-4400  Ext. 4952

-------------------------- Original Message --------------------------
May 1, 1925 would be represented as 0250501 in CYYMMDD format.  The C
value of 0 does cover all of 1900 to 1999, 1 2000 to 2099, etc.

What's confusing you, I suspect, is that the combination of QCENTURY,
QYEAR, QMONTH, and QDAY represent what the current date of the system
is and the system (current release and all that) only supports an IPL
date ranging from August 24 1928 to July 6 2053.  This limit on the
range of QDATE does not mean that CYYMMDD formats have the same limit.

I want to stress that this does not mean that application dates cannot go
beyond 2053.  Using 4-digit date formats applications can support dates from
year 0001 to year 9999 with no problem.


Bruce

>
>Hi Dan,
>
>I don't know the answer to your question, unless it's "You don't."
>
>I found those dates in the help for the QCENTURY system value.
>
>Regards,
>Peter Dow
>Dow Software Services, Inc.
>909 425-0194 voice
>909 425-0196 fax
>
>----- Original Message -----
>From: <D.BALE@handleman.com>
>To: <RPG400-L@midrange.com>
>Sent: Thursday, November 30, 2000 6:14 AM
>Subject: Re: Y2.1K Compliance
>
>
>> >it currently depends on the setting of the QCENTURY system
>> >value, where 0 = 1928-1999 and 1 = 2000-2053.
>>
>> I haven't followed this thread closely and, fortunately, I work in a shop
>>that
>> started using 8-digit dates ten years ago.  But the above quote caught my
>>eye.
>>  How do you represent May 1, 1925 using CYYMMDD?  May 1, 2054?  Why
>>wouldn't a
>> century digit of 0 cover all the years 1900-1999?  And so on?
>>
>> Dan Bale
>> IT - AS/400
>> Handleman Company
>> 248-362-4400  Ext. 4952
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