> Le 1 sept. 2019 à 01:10, Carl Hoefs via Cocoa-dev
> a écrit :
>
>
>> On Aug 31, 2019, at 2:51 AM, Allan Odgaard via Cocoa-dev
>> wrote:
>>
>> On 31 Aug 2019, at 2:49, Carl Hoefs via Cocoa-dev wrote:
>>
>>> Same result if I run it as a system daemon. So as you suggest it seems
>>> there could be some sort of environment sensitivity going on. If only I
>>> knew what env var to set in the shell... UTC really isn't what I'm looking
>>> for.
>>
>> The issue appears to be that `NSLog` sends your format string and arguments
>> to the unified logging system, this is what Xcode and Console displays, and
>> here you get dates formatted using the local time zone.
>>
>> But it *also* does a simple `stringWithFormat:` and sends the result to
>> standard error, at least when running in a terminal. This is where you are
>> seeing a more crude formatting of the date which is not adjusted to the
>> local time zone.
>>
>> Open a new tab in your terminal, in that tab run this command:
>>
>> log stream|grep 'Configured date'
>>
>> Now run your executable, and in the tab where it is running, you should see
>> the UTC date, but in the tab where you are watching the log stream, you get
>> the local date.
>> ___
>>
>
> Thanks for the input!
>
> I realized this is occurring because I'm allowing macOS to generate the date
> string according to its whims. If I do the string generation, then I can get
> consistent results. So I added the following line to my code:
>
>NSString *dateString = [NSDateFormatter
> localizedStringFromDate:configuredDate dateStyle:NSDateFormatterFullStyle
> timeStyle:NSDateFormatterLongStyle];
>
> and now I get a standardized string I can at least can live with, valid for
> all situations:
>
> Configured date: Saturday, August 31, 2019 at 3:55:02 PM PDT
>
Note that your output is still Local dependent and can change from on system to
an other.
___
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