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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

    <head>
    <title>NSTimeZone class reference</title>
  </head>
  <body>
    <font face="serif">
    <a href="Base.html">Up</a>
    <br />
    <h1><a name="title$NSTimeZone">NSTimeZone class reference</a></h1>
    <h3>Authors</h3>
    <dl>
      <dt>Yoo C. Chung (<a href="mailto:wacko@laplace.snu.ac.kr"><code>wacko@laplace.snu.ac.kr</code></a>)</dt>
      <dd>
      </dd>
      <dt>Richard Frith-Macdonald (<a href="mailto:rfm@gnu.org"><code>rfm@gnu.org</code></a>)</dt>
      <dd>
      </dd>
    </dl>
    <p><b>Version:</b> 37572</p>
    <p><b>Date:</b> 2014-01-11 08:09:39 +0000 (Sat, 11 Jan 2014)</p>
    <p><b>Copyright:</b> (C) 1997-20 11Free Software Foundation, Inc.</p>

        <div>
      <hr width="50%" align="left" />
      <h3>Contents -</h3>
      <ol>
        <li>
          <a href="#001000000000">Software documentation for the NSTimeZone class</a>
        </li>
        <li>
          <a href="#002000000000">Software documentation for the NSTimeZoneDetail class</a>
        </li>
      </ol>
      <hr width="50%" align="left" />
    </div>

          <h1><a name="001000000000">
        Software documentation for the NSTimeZone class
      </a></h1>
    <h2><a name="class$NSTimeZone">NSTimeZone</a> : <a rel="gsdoc" href="NSObject.html#class$NSObject">NSObject</a></h2>
    <blockquote class="declared">
      <dl>
        <dt><b>Declared in:</b></dt>
        <dd>Foundation/NSTimeZone.h</dd>
      </dl>
    </blockquote>
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
          
    </p>
    <p>

            The local time zone is obtained from, in order of
            preference: <br /> 1) the user defaults
            database: NSGlobalDomain &quot;Local Time Zone&quot; <br />
            2) the GNUSTEP_TZ environment variable <br /> 3) the
            file &quot;localtime&quot; in
            System/Library/Libraries/Resources/NSTimeZone
            <br /> 4) the TZ environment variable <br /> 5) The
            system zone settings (typically in /etc/localtime)
            <br /> 6) tzset and tznam on platforms which have it
            <br /> 7) Windows registry, on Win32 systems <br />
            8) or the fallback time zone (which is UTC) <br />
              </p>
    <p>
      
          
    </p>
    <p>

            If the GNUstep time zone datafiles become too out of
            date, one can download an updated database from
            <a href="ftp://elsie.nci.nih.gov/pub/">
              ftp://elsie.nci.nih.gov/pub/
            </a>
            and compile it as specified in the README file in the
            NSTimeZones directory.
              </p>
    <p>
      
          
    </p>
    <p>

            Time zone names in NSDates should be GMT, MET etc. not
            Europe/Berlin, America/Washington etc.
              </p>
    <p>
      
          
    </p>
    <p>

            The problem with this is that various time zones may
            use the same abbreviation (e.g. Australia/Brisbane and
            America/New_York both use EST), and some
            time zones may have different rules for daylight
            saving time even if the abbreviation and offsets
            from UTC are the same.
              </p>
    <p>
      
          
    </p>
    <p>

            The problems with depending on the OS for providing
            time zone info are that time zone names may vary
            wildly between OSes (this could be a big problem
            when archiving is used between different systems).
              </p>
    <p>
      
          
    </p>
    <p>

            Win32: Time zone names read from the registry are
            different from other GNUstep installations. Be
            careful when moving data between platforms in this
            case.
              </p>
    <p>
      
        
    </div>
    <b>Method summary</b>
    <ul>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+abbreviationDictionary">+abbreviationDictionary</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+abbreviationMap">+abbreviationMap</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+defaultTimeZone">+defaultTimeZone</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+knownTimeZoneNames">+knownTimeZoneNames</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+localTimeZone">+localTimeZone</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+resetSystemTimeZone">+resetSystemTimeZone</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+setDefaultTimeZone$">+setDefaultTimeZone:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+systemTimeZone">+systemTimeZone</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+timeZoneArray">+timeZoneArray</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+timeZoneForSecondsFromGMT$">+timeZoneForSecondsFromGMT:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+timeZoneWithAbbreviation$">+timeZoneWithAbbreviation:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+timeZoneWithName$">+timeZoneWithName:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone+timeZoneWithName$data$">+timeZoneWithName:data:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-abbreviation">-abbreviation</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-abbreviationForDate$">-abbreviationForDate:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-data">-data</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-daylightSavingTimeOffset">-daylightSavingTimeOffset</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-daylightSavingTimeOffsetForDate$">-daylightSavingTimeOffsetForDate:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-initWithName$">-initWithName:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-initWithName$data$">-initWithName:data:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-isDaylightSavingTime">-isDaylightSavingTime</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-isDaylightSavingTimeForDate$">-isDaylightSavingTimeForDate:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-isEqualToTimeZone$">-isEqualToTimeZone:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-localizedName$locale$">-localizedName:locale:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-name">-name</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-nextDaylightSavingTimeTransition">-nextDaylightSavingTimeTransition</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-nextDaylightSavingTimeTransitionAfterDate$">-nextDaylightSavingTimeTransitionAfterDate:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-secondsFromGMT">-secondsFromGMT</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-secondsFromGMTForDate$">-secondsFromGMTForDate:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-timeZoneDetailArray">-timeZoneDetailArray</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-timeZoneDetailForDate$">-timeZoneDetailForDate:</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZone-timeZoneName">-timeZoneName</a></li>
    </ul>
    <hr width="50%" align="left" />
<div class="method">
    <h3><a name="method$NSTimeZone+abbreviationDictionary">abbreviationDictionary&nbsp;</a></h3>
    + (<a rel="gsdoc" href="NSDictionary.html#class$NSDictionary">NSDictionary</a>*) <b>abbreviationDictionary</b>;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Returns a dictionary containing time zone
            abbreviations and their corresponding time
            zone names. More than one time zone may be associated
            with a single abbreviation. In this case, the
            dictionary contains only one (usually the most
            common) time zone name for the abbreviation.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+abbreviationMap">abbreviationMap&nbsp;</a></h3>
    + (<a rel="gsdoc" href="NSDictionary.html#class$NSDictionary">NSDictionary</a>*) <b>abbreviationMap</b>;<br />
    <div class="availability">
<b>Availability:</b> Not in OpenStep/MacOS-X</div>
<br />
    <div class="desc">
      
            Returns a dictionary that maps abbreviations to the
            array containing all the time zone names that use the
            abbreviation.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+defaultTimeZone">defaultTimeZone&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>defaultTimeZone</b>;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Return the default time zone for this process.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+knownTimeZoneNames">knownTimeZoneNames&nbsp;</a></h3>
    + (<a rel="gsdoc" href="NSArray.html#class$NSArray">NSArray</a>*) <b>knownTimeZoneNames</b>;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Returns an array of all known time zone names.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+localTimeZone">localTimeZone&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>localTimeZone</b>;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Return a proxy to the default time zone for this
            process.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+resetSystemTimeZone">resetSystemTimeZone&nbsp;</a></h3>
    + (void) <b>resetSystemTimeZone</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Destroy the system time zone so that it will be
            recreated next time it is used.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+setDefaultTimeZone$">setDefaultTimeZone:&nbsp;</a></h3>
    + (void) <b>setDefaultTimeZone:</b> (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*)aTimeZone;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Set the default time zone to be used for this process.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+systemTimeZone">systemTimeZone&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>systemTimeZone</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the current system time zone for the
            process.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+timeZoneArray">timeZoneArray&nbsp;</a></h3>
    + (<a rel="gsdoc" href="NSArray.html#class$NSArray">NSArray</a>*) <b>timeZoneArray</b>;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Returns an array of all the known regions. <br />
            There are 24 elements, of course, one for each time
            zone. Each element contains an array of NSStrings
            which are the region names.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+timeZoneForSecondsFromGMT$">timeZoneForSecondsFromGMT:&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>timeZoneForSecondsFromGMT:</b> (<a rel="gsdoc" href="TypesAndConstants.html#type$NSInteger">NSInteger</a>)seconds;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Return a timezone for the specified offset from GMT.
            <br /> The timezone returned does <em>not</em> use
            daylight savings time. The actual timezone
            returned has an offset rounded to the nearest
            minute. <br /> Time zones with an offset of more
            than +/- 18 hours are disallowed, and <code>nil</code>
            is returned.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+timeZoneWithAbbreviation$">timeZoneWithAbbreviation:&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>timeZoneWithAbbreviation:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)abbreviation;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Returns a timezone for the specified
            <var>abbreviation</var>. The same abbreviations are
            used in different regions so this isn&apos;t particularly
            useful. <br /> Calls NSTimeZone-abbreviation
            dictionary an so uses a lot of memory.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+timeZoneWithName$">timeZoneWithName:&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>timeZoneWithName:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)aTimeZoneName;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            Returns a timezone for the specified name.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone+timeZoneWithName$data$">timeZoneWithName:&nbsp;data:&nbsp;</a></h3>
    + (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*) <b>timeZoneWithName:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)name<b> data:</b> (<a rel="gsdoc" href="NSData.html#class$NSData">NSData</a>*)data;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns a timezone for aTimeZoneName, created from
            the supplied time zone <var>data</var>. Data must be in
            TZ format as per the Olson database.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-abbreviation">abbreviation&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>abbreviation</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the abbreviation for this timezone now.
            Invokes
            <a rel="gsdoc" href="#method$NSTimeZone-abbreviationForDate$">
              -abbreviationForDate:
            </a>

          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-abbreviationForDate$">abbreviationForDate:&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>abbreviationForDate:</b> (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*)aDate;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the abbreviation for this timezone at
            <var>aDate</var>. This may differ depending on
            whether daylight savings time is in effect or not.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-data">data&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSData.html#class$NSData">NSData</a>*) <b>data</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the data with which the receiver was
            initialised.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-daylightSavingTimeOffset">daylightSavingTimeOffset&nbsp;</a></h3>
    - (<a rel="gsdoc" href="TypesAndConstants.html#type$NSTimeInterval">NSTimeInterval</a>) <b>daylightSavingTimeOffset</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
    <div class="desc">
      
            <em>Description forthcoming.</em>
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-daylightSavingTimeOffsetForDate$">daylightSavingTimeOffsetForDate:&nbsp;</a></h3>
    - (<a rel="gsdoc" href="TypesAndConstants.html#type$NSTimeInterval">NSTimeInterval</a>) <b>daylightSavingTimeOffsetForDate:</b> (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*)aDate;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
    <div class="desc">
      
            <em>Description forthcoming.</em>
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-initWithName$">initWithName:&nbsp;</a></h3>
    - (id) <b>initWithName:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)name;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Initialise a timezone with the supplied
            <var>name</var>. May return a cached timezone object
            rather than the newly created one.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-initWithName$data$">initWithName:&nbsp;data:&nbsp;</a></h3>
    - (id) <b>initWithName:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)name<b> data:</b> (<a rel="gsdoc" href="NSData.html#class$NSData">NSData</a>*)data;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Initialises a time zone object using the
            supplied <var>data</var> object. <br /> This
            method is intended for internal use by the
            NSTimeZone class cluster. Don&apos;t use it... use
            <a rel="gsdoc" href="#method$NSTimeZone-initWithName$">
              -initWithName:
            </a>

            instead.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-isDaylightSavingTime">isDaylightSavingTime&nbsp;</a></h3>
    - (BOOL) <b>isDaylightSavingTime</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns a boolean indicating whether daylight
            savings time is in effect now. Invokes
            <a rel="gsdoc" href="#method$NSTimeZone-isDaylightSavingTimeForDate$">
              -isDaylightSavingTimeForDate:
            </a>

          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-isDaylightSavingTimeForDate$">isDaylightSavingTimeForDate:&nbsp;</a></h3>
    - (BOOL) <b>isDaylightSavingTimeForDate:</b> (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*)aDate;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns a boolean indicating whether daylight
            savings time is in effect for this time zone at
            <var>aDate</var>.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-isEqualToTimeZone$">isEqualToTimeZone:&nbsp;</a></h3>
    - (BOOL) <b>isEqualToTimeZone:</b> (<a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a>*)aTimeZone;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns <code>YES</code> if the time zones have the
            same name.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-localizedName$locale$">localizedName:&nbsp;locale:&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>localizedName:</b> (<a rel="gsdoc" href="TypesAndConstants.html#type$NSTimeZoneNameStyle">NSTimeZoneNameStyle</a>)style<b> locale:</b> (NSLocale*)locale;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
    <div class="desc">
      
            <em>Description forthcoming.</em>
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-name">name&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>name</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the name of the timezone
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-nextDaylightSavingTimeTransition">nextDaylightSavingTimeTransition&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*) <b>nextDaylightSavingTimeTransition</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
    <div class="desc">
      
            Not implemented
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-nextDaylightSavingTimeTransitionAfterDate$">nextDaylightSavingTimeTransitionAfterDate:&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*) <b>nextDaylightSavingTimeTransitionAfterDate:</b> (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*)aDate;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
    <div class="desc">
      
            Not implemented
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-secondsFromGMT">secondsFromGMT&nbsp;</a></h3>
    - (<a rel="gsdoc" href="TypesAndConstants.html#type$NSInteger">NSInteger</a>) <b>secondsFromGMT</b>;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the number of seconds by which the receiver
            differs from Greenwich Mean Time at the current
            date and time. <br /> Invokes
            <a rel="gsdoc" href="#method$NSTimeZone-secondsFromGMTForDate$">
              -secondsFromGMTForDate:
            </a>

          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-secondsFromGMTForDate$">secondsFromGMTForDate:&nbsp;</a></h3>
    - (<a rel="gsdoc" href="TypesAndConstants.html#type$NSInteger">NSInteger</a>) <b>secondsFromGMTForDate:</b> (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*)aDate;<br />
    <div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the number of seconds by which the receiver
            differs from Greenwich Mean Time at the date
            <var>aDate</var>. <br /> If the time zone uses
            daylight savings time, the returned value will
            vary at different times of year.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-timeZoneDetailArray">timeZoneDetailArray&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSArray.html#class$NSArray">NSArray</a>*) <b>timeZoneDetailArray</b>;<br />
    <div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
    <div class="desc">
      
            DEPRECATED: see NSTimeZoneDetail
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-timeZoneDetailForDate$">timeZoneDetailForDate:&nbsp;</a></h3>
    - (<a rel="gsdoc" href="#class$NSTimeZoneDetail">NSTimeZoneDetail</a>*) <b>timeZoneDetailForDate:</b> (<a rel="gsdoc" href="NSDate.html#class$NSDate">NSDate</a>*)date;<br />
    <div class="availability">
<b>Availability:</b> OPENSTEP 4.0.0 removed at MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            DEPRECATED: see NSTimeZoneDetail
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZone-timeZoneName">timeZoneName&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>timeZoneName</b>;<br />
    <div class="availability">
<b>Availability:</b> OPENSTEP 4.0.0 removed at MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            Returns the name of this timezone.
          
    </div>
    <hr width="25%" align="left" />
</div>

          <h1><a name="002000000000">
        Software documentation for the NSTimeZoneDetail class
      </a></h1>
    <h2><a name="class$NSTimeZoneDetail">NSTimeZoneDetail</a> : <a rel="gsdoc" href="#class$NSTimeZone">NSTimeZone</a></h2>
    <blockquote class="declared">
      <dl>
        <dt><b>Declared in:</b></dt>
        <dd>Foundation/NSTimeZone.h</dd>
      </dl>
    </blockquote>
    <div class="availability">
<b>Availability:</b> OPENSTEP 4.0.0 removed at MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
          This class serves no useful purpose in GNUstep other
          than to provide a backup mechanism for handling
          abbreviations where the precomputed data files
          cannot be found. It is provided primarily for backward
          compatibility with the OpenStep spec. It is
          missing entirely from MacOS-X.
        
    </div>
    <b>Method summary</b>
    <ul>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZoneDetail-isDaylightSavingTimeZone">-isDaylightSavingTimeZone</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZoneDetail-timeZoneAbbreviation">-timeZoneAbbreviation</a></li>
      <li><a rel="gsdoc" href="NSTimeZone.html#method$NSTimeZoneDetail-timeZoneSecondsFromGMT">-timeZoneSecondsFromGMT</a></li>
    </ul>
    <hr width="50%" align="left" />
<div class="method">
    <h3><a name="method$NSTimeZoneDetail-isDaylightSavingTimeZone">isDaylightSavingTimeZone&nbsp;</a></h3>
    - (BOOL) <b>isDaylightSavingTimeZone</b>;<br />
    <div class="availability">
<b>Availability:</b> OPENSTEP 4.0.0 removed at MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            DEPRECATED: <strong>Class</strong> is no longer
            used.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZoneDetail-timeZoneAbbreviation">timeZoneAbbreviation&nbsp;</a></h3>
    - (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>timeZoneAbbreviation</b>;<br />
    <div class="availability">
<b>Availability:</b> OPENSTEP 4.0.0 removed at MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            DEPRECATED: <strong>Class</strong> is no longer
            used.
          
    </div>
    <hr width="25%" align="left" />
</div>
<div class="method">
    <h3><a name="method$NSTimeZoneDetail-timeZoneSecondsFromGMT">timeZoneSecondsFromGMT&nbsp;</a></h3>
    - (<a rel="gsdoc" href="TypesAndConstants.html#type$NSInteger">NSInteger</a>) <b>timeZoneSecondsFromGMT</b>;<br />
    <div class="availability">
<b>Availability:</b> OPENSTEP 4.0.0 removed at MacOS-X 10.0.0</div>
<br />
    <div class="desc">
      
            DEPRECATED: <strong>Class</strong> is no longer
            used.
          
    </div>
    <hr width="25%" align="left" />
</div>
    <br />
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