"Date Modified" as shown in Nautilus equals "Geotime value" in UTC?

[Archive]

[Originally posted by janmartin on 2009-08-02 10:17:52-07]

Hi all,

in Nautilus filemanager (on Ubuntu Jaunty Linux) the "Date Modified" shown is e.g:

2009-08-01 19:29:29

I run exiftool on files without exif tags at all:

Code:

exiftool -v2 -overwrite_original -geotag 20090801.gpx '-geotime<${FileModifyDate}' '-DateTimeOriginal<FileModifyDate' -P /pictures > 20090801_exiftool.log

However I get this:

from gpx file, RIGHT:

GPS track start: 2009:08:01 19:21:53 UTC

GPS track end:   2009:08:01 19:55:09 UTC

from picture, WRONG by timezone:

Geotime value:   2009:08:01 17:29:29 UTC

Geotime value is WRONG by 2 hours.

Which is my timezone: 1 hour for Germany, 1 hour for DLS (Daylight Saving).

So no geotagging happens because "Geotime value" is outside of the track times.

How to make this work?

Both the UTC time in the .gpx file and "Date Modified" of the picture as shown by Nautilus are correct.

So I do not want to change them.

Full output:

Code:

======== /home/me/Documents/pentaone-unboxing/20090801/panos/00000001.jpg
Setting new values from /home/me/Documents/pentaone-unboxing/20090801/panos/00000001.jpg
  Geotime value:   2009:08:01 17:29:29 UTC
Writing MIE-Doc:DateTimeOriginal
Writing Kodak:DateTimeOriginal if tag exists
Writing CanonRaw:DateTimeOriginal if tag exists
Writing XMP-exif:DateTimeOriginal if tag exists
Writing ExifIFD:DateTimeOriginal
Rewriting /home/me/Documents/pentaone-unboxing/20090801/panos/00000001.jpg...
  Editing tags in: APP0 APP1 CIFF ExifIFD File IFD0 JFIF MIE-Doc MakerNotes XMP
  Creating tags in: APP1 ExifIFD File IFD0 MIE-Doc
JPEG APP0 (14 bytes):
  Rewriting JFIF
Creating APP1:
  Creating IFD0
  ExifByteOrder = MM
    + IFD0:XResolution = '72' (mandatory)
    + IFD0:YResolution = '72' (mandatory)
    + IFD0:ResolutionUnit = '2' (mandatory)
    + IFD0:YCbCrPositioning = '1' (mandatory)
  Creating ExifIFD
    + ExifIFD:ExifVersion = '0220' (mandatory)
    + ExifIFD:DateTimeOriginal = '2009:08:01 19:29:29'
    + ExifIFD:ComponentsConfiguration = '1 2 3 0' (mandatory)
    + ExifIFD:FlashpixVersion = '0100' (mandatory)
    + ExifIFD:ColorSpace = '65535' (mandatory)
JPEG DQT (65 bytes):
JPEG DQT (65 bytes):
JPEG SOF0:
JPEG DHT (26 bytes):
JPEG DHT (68 bytes):
JPEG DHT (24 bytes):
JPEG DHT (42 bytes):
JPEG SOS

[Archive]

[Originally posted by exiftool on 2009-08-11 12:18:16-07]

This is odd.  It seems like the FileModifyDate is wrong.  What
timezone does Nautilus filemanager use?  What is the output
of "ls -l" for this file?

This problem should only occur if somehow exiftool is using
a different timezone from Nautilus filemanager.  ExifTool uses
the standard C timezone routines.  Some investigation will
be necessary on your part to figure out what is going on.

 - Phil