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At what time was this photo taken?

Started by Alan Clifford, August 04, 2020, 11:49:42 AM

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Alan Clifford

I came back from South Africa in March so the datetimeoriginal of 15:37:40 is possibly +2.  Or I could have reset my camera to +1.  I took couple of photos yesterday, deleted them and then checked/reset the time zone on the camera.  I can't remember which.  The computer is, and was, on +1.

I am thinking that FileInodeChangeDate at 14:44:34+01:00 indicates that I put the photo on the computer about 7 minutes after taking it, which is reasonable for what the photo is and what I was doing and that the camera was on +2.

cellini:bits alan$ exiftool -s -G -api mditemtags=1 2020-04-29_p340_1972.jpg | grep -i date
[File]          FileModifyDate                  : 2020:04:29 15:37:42+01:00
[File]          FileAccessDate                  : 2020:08:04 16:23:12+01:00
[File]          FileInodeChangeDate             : 2020:04:29 14:44:34+01:00
[File]          MDItemContentCreationDate       : 2020:04:29 15:37:40+01:00
[File]          MDItemContentCreationDate_Ranking: 2020:04:29 01:00:00+01:00
[File]          MDItemContentModificationDate   : 2020:04:29 15:37:40+01:00
[File]          MDItemDateAdded                 : 2020:04:29 14:43:20+01:00
[File]          MDItemDateAdded_Ranking         : 2020:04:29 01:00:00+01:00
[File]          MDItemFSContentChangeDate       : 2020:04:29 15:37:42+01:00
[File]          MDItemFSCreationDate            : 2020:04:29 15:37:42+01:00
[File]          MDItemInterestingDate_Ranking   : 2020:04:29 01:00:00+01:00
[File]          MDItemLastUsedDate              : 2020:04:29 14:43:34+01:00
[File]          MDItemLastUsedDate_Ranking      : 2020-04-29 00:00:00 +0000
[File]          MDItemUsedDates                 : 2020:04:29 00:00:00+01:00
[EXIF]          ModifyDate                      : 2020:04:29 15:37:40
[EXIF]          DateTimeOriginal                : 2020:04:29 15:37:40
[EXIF]          CreateDate                      : 2020:04:29 15:37:40
[MakerNotes]    DateStampMode                   : Off





Phil Harvey

This sounds like a reasonable theory to me.

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).

jcharmon

If you use a GPS tracker, you'll also have access to a GPS UTC date/time tag based on the satellite clock.

Hyddo

Quote from: jcharmon on September 14, 2020, 07:25:28 PM
If you use a GPS tracker, you'll also have access to a GPS UTC date/time tag based on the satellite clock.

This sounds about right

Phil Harvey

Quote from: Hyddo on September 17, 2020, 09:11:20 AM
This sounds about right

I'm thinking Hyddo may be a sleeper spam account.  I'll watch it closely and delete it if he does anything more suspicious (like add a URL in his signature).

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).