title: How to find time zone set in Panasonic EXIF
body: <p>The Panasonic Lumix GX8 doesn't have a GPS, so generally doesn't know where it is. However the time can be set manually and a time zone set. But I can't figure out if that information is available in the EXIF data.</p>
  <p>TimeStamp shows UTM time and all the other time related EXIF data is in local time (whatever time is set for the camera. So the camera is storing the offset, but I wanted get it directly.</p>
  <p>In Ruby</p>
  <pre><code>require …
  photo = MiniExiftool.new(fn) # fn is a filename
  timeZone =  (photo.CreateDate - photo.TimeStamp)/3600
  puts &quot;timeZone: #{timeZone}&quot;
  </code></pre>
  <p>works as expected. But can the offset be found directly via EXIF?</p>
  <p>exiftool.org has</p>
  <pre><code> Panasonic TimeInfo Tags
  
  Index1  Tag Name    Writable    Values / Notes
  0   PanasonicDateTime   undef[8]     
  </code></pre>
  <p>but PanasonicDateTime is null for the GX8.</p>
  <pre><code>exiftool -G1 -a -s -time:all &quot;file.rw2&quot;
  [System]        FileModifyDate                  : 2021:12:05 18:40:45-08:00
  [System]        FileAccessDate                  : 2021:12:05 19:17:28-08:00
  [System]        FileInodeChangeDate             : 2021:12:05 18:40:45-08:00
  [IFD0]          ModifyDate                      : 2021:11:25 15:31:34
  [ExifIFD]       DateTimeOriginal                : 2021:11:25 15:31:34
  [ExifIFD]       CreateDate                      : 2021:11:25 15:31:34
  [Panasonic]     TimeStamp                       : 2021:11:25 22:31:34
  [ExifIFD]       SubSecTime                      : 277
  [ExifIFD]       SubSecTimeOriginal              : 277
  [ExifIFD]       SubSecTimeDigitized             : 277
  [GPS]           GPSTimeStamp                    : 22:31:34
  [GPS]           GPSDateStamp                    : 2021:11:25
  [ExifIFD]       DateTimeOriginal                : 2021:11:25 15:31:34
  [ExifIFD]       CreateDate                      : 2021:11:25 15:31:34
  [ExifIFD]       SubSecTimeOriginal              : 277
  [ExifIFD]       SubSecTimeDigitized             : 277
  [GPS]           GPSTimeStamp                    : 22:31:34
  [GPS]           GPSDateStamp                    : 2021:11:25
  [Composite]     SubSecCreateDate                : 2021:11:25 15:31:34.277
  [Composite]     SubSecDateTimeOriginal          : 2021:11:25 15:31:34.277
  [Composite]     SubSecModifyDate                : 2021:11:25 15:31:34.277
  [Composite]     GPSDateTime                     : 2021:11:25 22:31:34Z
  [Composite]     GPSDateTime                     : 2021:11:25 22:31:34Z
  </code></pre>