I took over a thousand photos whereas on trip in Europe with my accomplice’s iPhone 15 Professional. Going by them now, I see that the timestamps (as saved within the ‘EXIF’ metadata part of the picture) on a whole bunch of them are utterly incorrect – they’re off by precisely 9 hours, which occurs to be the time zone distinction between my residence in California and the picture location in Europe. Examples (these photos have been all taken in the identical basic location at roughly the identical time and are clearly sequential):
-
IMG_2011 – EXIF timestamp 02:19:45 (I used to be asleep at 02:19 native time,
so that is clearly incorrect) -
IMG_2012 – EXIF timestamp 11:25:39 (that is the proper native time)
-
IMG_2013 – EXIF timestamp 02:25:58 (taken 19 seconds after the
earlier picture however with incorrect timestamp) -
IMG_2014 – EXIF timestamp 11:28:09 (taken ~2 minutes after the
earlier picture) with right timestamp
All three EXIF timestamps are equally incorrect, on the ‘unhealthy’ photographs – DateTime, DateTimeOriginal, and DateTimeDigitized.
Of specific curiosity are photographs IMG_2012 and IMG_2013 – they have been taken from the identical spot, simply 19 seconds aside, however present timestamps 9 hours aside.
The GPS location of all of the pictures is right – so it is not as if there was no GPS sign at some closing dates inflicting the digital camera to assume it was again in CA. These are outside pictures so once more, no GPS points.
The EXIF timestamps are essential to me for numerous causes so this can be a huge subject. I do have EXIF instruments to right the timestamps, however it’s a terribly tedious process.
I did intently analyze the complete EXIF knowledge, and I did discover one factor – for the photographs with ‘right’ timestamps, they present OffsetTime, OffsetTimeOriginal and OffsetTimeDigital as +2:00; and for the photographs with the incorrect timestamps, they present OffsetTime, OffsetTimeOriginal and OffsetTimeDigital as -7:00. I am guessing these are relative to GMT/UTC, as Spain is at present UTC+2 and California is UTC-7. So one thing is inflicting the iPhone to mark half the photographs with the incorrect offset for some motive.
Here is a composite screenshot of the 2 photographs mentioned above (screenshots from the iPhone) that have been taken 19 seconds aside. As you’ll be able to see, the picture on the left is displaying 11:25am, whereas the picture on the suitable is displaying 2:25am – 9 hours off. Apparently, they type appropriately on the iPhone regardless of the time points.
And this is a snapshot of the EXIF knowledge for the above two photographs:
and a snapshot of the GPS knowledge portion of the EXIF knowledge:
The “GPSTimeStamp” entry – approx. 9:25 – is the proper ‘UTC’ time for each photos.
I am curious to know how this might have occurred, however I suppose I additionally must discover a method to right the ‘unhealthy’ variations.