Just tried it on one of my files

Original file exif

File name       : _7D_9686.CR2
File size       : 22606679 Bytes
MIME type       : image/x-canon-cr2
Image size      : 5184 x 3456
Camera make     : Canon
Camera model    : Canon EOS 7D
Image timestamp : 2018:03:26 17:29:14
Image number    :
Exposure time   : 1/1000 s
Aperture        : F6.3
Exposure bias   : 0 EV
Flash           : No, compulsory
Flash bias      : 0 EV
Focal length    : 400.0 mm
Subject distance: 0 m26.31 m37.42 m
ISO speed       : 250
Exposure mode   : Manual
Metering mode   : Multi-segment
Macro mode      : Off
Image quality   : RAW
Exif Resolution : 5184 x 3456
White balance   : Auto
Thumbnail       : image/jpeg, 15286 Bytes
Copyright       : (c) 2018 Bill Ferguson. All Rights Reserved.
Exif comment    :


Copied the file to another directory and did exiv2 -v ad -a -1:00:00
_7D_9686.CR2

Modified file exif

File name       : _7D_9686.CR2
File size       : 22606679 Bytes
MIME type       : image/x-canon-cr2
Image size      : 5184 x 3456
Camera make     : Canon
Camera model    : Canon EOS 7D
Image timestamp : 2018:03:26 16:29:14
Image number    :
Exposure time   : 1/1000 s
Aperture        : F6.3
Exposure bias   : 0 EV
Flash           : No, compulsory
Flash bias      : 0 EV
Focal length    : 400.0 mm
Subject distance: 0 m26.31 m37.42 m
ISO speed       : 250
Exposure mode   : Manual
Metering mode   : Multi-segment
Macro mode      : Off
Image quality   : RAW
Exif Resolution : 5184 x 3456
White balance   : Auto
Thumbnail       : image/jpeg, 15286 Bytes
Copyright       : (c) 2018 Bill Ferguson. All Rights Reserved.
Exif comment    :


Started darktable and imported the file and it showed 04:29:14 PM,
so it appears to be working correctly, at least on my system.

Try copying or moving the file to a different directory, then import it and
see if the time is correct.  If that works, then my guess would be that
when you thought it was removed from the database, it didn't actually get
removed from the database.

Hope this helps,

Bill

On Fri, Apr 6, 2018 at 2:18 PM, Jean-Luc CECCOLI <
jean-luc.cecc...@wanadoo.fr> wrote:

> Well... no one who can tell ?
>
>
>
>
>
>
>
> > Message du 01/04/18 15:01
> > De : "Jean-Luc CECCOLI" <jean-luc.cecc...@wanadoo.fr>
> > A : darktable-user@lists.darktable.org
> > Copie à :
> > Objet : [darktable-user] DT & Exif data (ex : Vacations)
>
> >
> >
>
> > Hello,
>
> >
>
> > Merry Eastern to everyone.
>
> >
>
> > I am just trying to understand where and how DT retrieves data from the
> exifs.
>
> > After reading the thread, I did a exiv2 -v ad -a -1:00:00 Test.nef.
>
> > The photo named Test.nef is one with no importance, so no matter what
> could happen to it.
>
> > Before applying the command to it, DT displayed 18:35:15 as shooting
> time.
>
> > After that, although exiv2 told it had modified 3 instances of the time,
> DT still displayed 18:35:15 instead of 17:35:15.
>
> > As I re-imported it after removing it frome the database, it can not be
> a matter of persistent data.
>
> > So, again, where does DT retrieve this unmodified time ?
>
> >
>
> >
>
> >
>
> > Message du 24/03/18 09:40
> > De : "Hervé Sainct" <herve.sai...@laposte.net>
> > A : darktable-user@lists.darktable.org
> > Copie à :
> > Objet : Re: [darktable-user] Vacations
> >
> >
> >
> > Le 22/03/2018 à 14:46, darkta...@911networks.com a écrit :
> > >> If xnviewmp works fine why not just using it?
> > > I want to also do the ratings and labels but somehow I haven't
> > > figured a way of importing these from xnviewmp to dt.
> > >
> > > I'm going for a while, so I'd like to be done with the dam before
> > > coming back home.
> > >
> > FWIW, I use FastPhotoTagger as a quick initial sorter/tagger; it writes
> > directly inside the EXIF data (not creating any sidecar file) -I know
> > from a DT point of view this is a terrible sin, but I find this very
> > helpful : any search engine becomes terribly efficient (e. g. Recoll),
> > people you give your pics get them tagged too...
> > The only draback in FastPhotoTagger is actually linked to that : when
> > upgrading the Exifs the filedates are changed.
> > This sometimes is a concern, but a ferocious exiv2 rename -T *.* solves
> > it...
> > http://fastphototagger.sourceforge.net/
> > ____________________________________________________________
> ________________
> > darktable user mailing list
> > to unsubscribe send a mail to darktable-user+unsubscribe@
> lists.darktable.org
> >
> >
>
>
> > ____________________________________________________________________________
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> >
>
>
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