[squeak-dev] trunk thinks its tomorrow

David T. Lewis lewis at mail.msen.com
Thu Feb 18 02:11:00 UTC 2016

On Wed, Feb 17, 2016 at 05:35:45PM -0800, tim Rowledge wrote:
> > On 17-02-2016, at 5:15 PM, David T. Lewis <lewis at mail.msen.com> wrote:
> > 
> > I will post an update to DataAndTime class>>nowWithOffset that seems to
> > me to be the LHTTCPW (least horrible thing that could possibly work).
> Ah sorry Dave, you can???t do that (as in http://source.squeak.org/trunk/Kernel-dtl.990.mcz)
> The code is working ok if the TZ is set correctly. If I set PST
> DateAndTime localTimeZone: (TimeZone offset: -8 hours name: 'Pacific Standard Time' abbreviation: 'PST???).
> then
> DateAndTime now -> 2016-02-18T01:30:48.40668-08:00
> which is correct - the UTC is 8 hrs ahead of my local time.

Since introduction of the UTC changes, none of this is going to work
without the time zone being set. So if you set your time zone and it
seems to work, that is good. Or at least it is less horrible than

> Now, ???DateAndTime now asLocal??? seems to me to be wrong since it returns just the same time. And asUTC appears to go the wrong way, showing it to be 9:30 in  the morning

Dunno. There is no method comment for DateAndTime>>asLocal. I would
expect it to answer an instance that represents the same absolute time,
but with with the offset set to local time zone and other instance
variables set to make it look like the same time. It does seem to be
doing this.

This also seems to do what I would expect:

  now := DateAndTime now.
  { now . now asUTC asLocal } ==> {2016-02-17T21:06:53.482839-05:00 . 2016-02-17T21:06:53.482839-05:00}


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