One issue appears to be that the #epoch is calculated relative to
"self localOffset".  So #epoch reports technically different times
depending what one's #localOffset is.

|dt1 dt2| dt1:= '2004-02-29T13:33:00+02:00' asDateAndTime.
dt2 := '2004-02-29T11:33:00+00:00' asDateAndTime.
self assert: dt1 = dt2.
self assert: dt1 asSeconds = dt2 asSeconds.   "fails!"

This is bad, isn't it?



On Sat, Dec 3, 2016 at 12:50 PM, Chris Muller <ma.chris.m at gmail.com> wrote:
>> Do you know the answer to Dave's question "How many seconds elapsed between
>> the Smalltalk epoch and the time 2004-02-29T13:33:00+02:00?"?
>
> IOW, as long as this private, internal number is consistent for the
> callers, does it matter what the number is?  Whether the internal
> "starting point" is midnight, 2am, 6am or 7:37:59am for that matter?
> The comment just says "1 January 1901" it does not specify a time,
> could we just clarify the exact time in the comment and then
> everything be fine?
>
> Or is there some calculation or scenario for an application that is
> not consistent and correct due to this?