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Re: NSLog displays inconsistent format for NSDate
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Re: NSLog displays inconsistent format for NSDate


  • Subject: Re: NSLog displays inconsistent format for NSDate
  • From: Carl Hoefs via Cocoa-dev <email@hidden>
  • Date: Fri, 30 Aug 2019 17:49:59 -0700

Outside of Xcode, when I run the program (a "Command line tool") directly from
the bash shell, it prints out in UTC "unixy" format:

2019-08-31 01:00:01 +0000

...but at the same time it gets logged in the Console log as:

Fri Aug 30 18:00:01 2019

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.

-Carl


> On Aug 30, 2019, at 5:20 PM, Uli Kusterer <email@hidden>
> wrote:
>
> Wildly guessing here, but could be that NSLog uses different implementations
> depending on how it was launched. It could be using os_log() under the hood,
> which doesn't necessarily format all parameters right away, but rather just
> sends them to the logging system, which then formats it?
>
> Cheers,
> -- Uli Kusterer
> "The Witnesses of TeachText are everywhere..."
> http://www.zathras.de
>
>> On 20. Aug 2019, at 21:50, Carl Hoefs via Cocoa-dev
>> <email@hidden> wrote:
>>
>> When printing out an NSDate using NSLog from within Xcode I get:
>>
>> "Tue Aug 20 12:32:40 2019"
>>
>> When the same program is run from within a shell (bash) window:
>>
>> "2019-08-20 19:32:48 +0000"
>>
>> Is the NSDate output format somehow determined by the environment? My system
>> is set to Local Time Zone (America/Los_Angeles (PDT) offset -25200
>> (Daylight)).
>>
>> A code snippet that reproduces the issue follows.
>>
>> -Carl
>

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  • Follow-Ups:
    • Re: NSLog displays inconsistent format for NSDate
      • From: Allan Odgaard via Cocoa-dev <email@hidden>
References: 
 >NSLog displays inconsistent format for NSDate (From: Carl Hoefs via Cocoa-dev <email@hidden>)
 >Re: NSLog displays inconsistent format for NSDate (From: Uli Kusterer via Cocoa-dev <email@hidden>)

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