Re: Date field's and their file space usage.

It is also the accepted date of the death of Teresa of Avila, the
reformer of the Carmelite order.  (amazing what you can google ;-)


On Tue, 11 Jan 2005 15:37:23 -0500, Haas, Matt <Matt.Haas@xxxxxxxxxxx> wrote:
> October 14, 1582 is when the Gregorian calendar was introduced.
> 
> Matt
> 
> -----Original Message-----
> From: Joe Lee [mailto:LeeJD@xxxxxx]
> Sent: Tuesday, January 11, 2005 3:27 PM
> To: rpg400-l@xxxxxxxxxxxx
> Subject: RE: Date field's and their file space usage.
> 
> 4713 BCE? why not 4712 or 4714? For that matter why October 14, 1582? At
> least the Unix date time values with a base of January 1, 1970 makes
> some sense, but who came up with these other base dates, and why?
> 
> Joe Lee
> 
> >>> cozzi@xxxxxxxxx 01/11/2005 12:18:06 >>>
> Yes, I know/knew about the scaliger number but didn't want to use big
> words.
> <vbg>
> 
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
> On Behalf Of Bruce Vining
> Sent: Tuesday, January 11, 2005 1:01 PM
> To: RPG programming on the AS400 / iSeries
> Subject: RE: Date field's and their file space usage.
> 
> > Date fields are all stored internally as a 4-byte integer. The value
> stored
> > is the number of days since January 1, 0001 or October 14, 1582, I'm
> not
> > sure which it is.
> 
> A minor point but date fields are actually stored using Scaliger
> numbers
> which have a base of January 1 4713 BCE.
> 
> October 14 1582 is the base date for Lilian numbers which are used by
> the
> ILE CEE Date APIs.
> 
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