I took over a thousand photos whereas on trip in Europe with my associate’s iPhone 15 Professional. Going by them now, I see that the timestamps (as saved within the ‘EXIF’ metadata part of the picture) on tons of of them are fully flawed – they’re off by precisely 9 hours, which occurs to be the time zone distinction between my house in California and the picture location in Europe. Examples (these photos had been all taken in the identical common 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 flawed) -
IMG_2012 – EXIF timestamp 11:25:39 (that is the right native time)
-
IMG_2013 – EXIF timestamp 02:25:58 (taken 19 seconds after the
earlier picture however with flawed timestamp) -
IMG_2014 – EXIF timestamp 11:28:09 (taken ~2 minutes after the
earlier picture) with right timestamp
All three EXIF timestamps are equally flawed, on the ‘dangerous’ photos – DateTime, DateTimeOriginal, and DateTimeDigitized.
Of specific curiosity are photos IMG_2012 and IMG_2013 – they had been taken from the identical spot, simply 19 seconds aside, however present timestamps 9 hours aside.
The GPS location of all of the images is right – so it isn’t as if there was no GPS sign at some deadlines inflicting the digicam to assume it was again in CA. These are out of doors images so once more, no GPS points.
The EXIF timestamps are essential to me for numerous causes so it is a large situation. I do have EXIF instruments to right the timestamps, however it’s a terribly tedious process.
I did intently analyze the total 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 flawed timestamps, they present OffsetTime, OffsetTimeOriginal and OffsetTimeDigital as -7:00. I am guessing these are relative to GMT/UTC, as Spain is presently UTC+2 and California is UTC-7. So one thing is inflicting the iPhone to mark half the photographs with the flawed offset for some motive.
This is a composite screenshot of the 2 photos mentioned above (screenshots from the iPhone) that had been taken 19 seconds aside. As you possibly can see, the picture on the left is displaying 11:25am, whereas the picture on the correct is displaying 2:25am – 9 hours off. Apparently, they kind accurately on the iPhone regardless of the time points.
And here is a snapshot of the EXIF knowledge for the above two photos:
and a snapshot of the GPS knowledge portion of the EXIF knowledge:
The “GPSTimeStamp” entry – approx. 9:25 – is the right ‘UTC’ time for each photos.
I am curious to know how this might have occurred, however I suppose I additionally have to discover a strategy to right the ‘dangerous’ variations.
