Re: How to get the time zone of a parsed date/time string?
Re: How to get the time zone of a parsed date/time string?
- Subject: Re: How to get the time zone of a parsed date/time string?
- From: Keary Suska <email@hidden>
- Date: Wed, 30 Jul 2014 15:47:57 -0600
On Jul 30, 2014, at 12:24 PM, Jens Alfke <email@hidden> wrote:
> After NSDateFormatter parses a date string that includes a time zone, how can the caller determine the time zone? The result is an NSDate object, which is simply a timestamp with no notion of time zone.
>
> For example, how does one determine from the string "Wed, 30 Jul 2014 08:21:35 -0700” that the time zone is GMT-7:00?
>
> (IIRC, in the olden days NSDateFormatter would return an NSCalendarDate object, which did have a timeZone property, but no more.)
If you drop down to C you could use strptime() to get a struct tm that has the tm_zone member for time zone string. It might also have a tm_gmtoff member, which shows the UTF offset in seconds. As mentioned previously, you may not get a correct time zone for a GMT offset.
HTH,
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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