From: "Vaughan Evans" <[EMAIL PROTECTED]>
> It seems that isDate() returns false when you pass it a date in julian
> format. Is this so?
[snip]
>
> <cfoutput>#dateFormat(36852.6533681)#</cfoutput>
>
> it outputs: 22-Nov-00
>
> So if I have a list of values of which one item may be a Julian Date how do
> I find out if its a date or not?
>
IsNumericDate()
All dates are stored and manipulated as points on a subset of the rational
numbers. Whether this is a congruent match for the julian timeline based
on the 1800 epoch is unknown. It is most likely congruent, but I can't
prove it.
Converting julian -> 'normal' is fairly easy with the cf datetime func.
(DateFormat and TimeFormat with judiciously applied masks produces
plug in values for CreateDateTime() as a set of values to combine, or,
if you mask correctly for delimters, as a list to loop through)
Going the opposite way is a bit more work.
Pan
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